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  1. Fulltext Meal patterns of Malaysian adults: findings from the Malaysian adults nutrition survey (MANS)
    Wan Abdul Manan WM, Nur Firdaus I, Safiah MY, Siti Haslinda MD, Poh BK, Norimah AK, et al.
    Malays J Nutr, 2012 Aug;18(2):221-30.
    PMID: 24575668 MyJurnal
    INTRODUCTION: Meal patterns have received little attention in nutrition studies. The aim of this study is to present the findings on general meal patterns of Malaysian adults.
    METHODS: The Malaysian Adults Nutrition Survey (MANS), carried out in 2002 and 2003, involved 6,928 adults selected by stratified random sampling from all households by zone in Peninsular Malaysia, Sabah and Sarawak.
    RESULTS: In general, the results showed that most respondents (74.16%) ate three meals per day; 89.20% of the respondents consumed breakfast, while 88.57% consumed lunch and 91.97% consumed dinner with no significant difference in terms of sex. In Peninsular Malaysia, the Northern Zone had the highest number of people consuming breakfast compared to other zones. Meanwhile, the population in Sarawak had the largest proportion of people consuming lunch and dinner, but the smallest proportion of people consuming breakfast. A significantly higher number of the rural population consumed breakfast and lunch than urbanites; however there was no significant difference in dinner consumption. Generally, breakfast consumption increased with age whereby significant difference existed between the 18 to 19 years age group and the age group of 30 years and older. Lunch intake among the age groups showed no significant difference. In contrast, dinner consumption was significantly lower among the 18 to 19 years age group compared to all other age groups. Comparison among the ethnic groups showed that the Indian population had the lowest percentage of having breakfast and lunch while the Orang Asli had the lowest percentage of consuming dinner. However, the Orang Asli recorded the highest percentage for taking breakfast and lunch while the Chinese had the highest percentage of taking dinner.
    CONCLUSION: Considering that Malaysian adults consumed their conventional breakfast, lunch and dinner, these findings indicatethat Malaysians are maintaining their traditional meal patterns.
    Study name: Malaysian Adult Nutrition Survey (MANS-2003)
    Matched MeSH terms: Age Factors
  2. Geriatric Telemedicine: Ensuring continuity of healthcare services to the older patients in Kedah, Malaysia during the COVID-19 pandemic
    Teh HL, Mohd Suan MA, Mohammed NS
    Med J Malaysia, 2021 07;76(4):562-564.
    PMID: 34305118
    Geriatric medicine practice requires a multidimensional and multidisciplinary assessment to provide a holistic overview of the older patients. During the current COVID-19 pandemic time, it becomes more critical to ensure that the elderly patients continue to receive regular geriatric care for their pre-existing chronic illness and at the same time avoid unnecessary exposure to COVID-19 virus. Geriatric telemedicine clinic provides a convenient solution to ensure continuity of care for the older patients. Careful patient selection, technical requirement, geriatric assessment via audio-visual communication, and caretaker involvement were among the important issues discussed in this article.
    Matched MeSH terms: Age Factors
  3. Stimulation of erythrocyte glutathione reductase activity by flavin adenine dinucleotide (FAD) in Malaysian adults and newborns and their parents
    Luan Eng LI, Ng T, Wan WP, Ganesan J
    Br J Haematol, 1975 Nov;31(3):337-42.
    PMID: 1201246
    A study of glutathione reductase (GR) activity and its stimulation by flavin adenine dinucleotide (FAD) in erythrocytes of Malaysian newborns and adults of different racial groups showed that GR stimulation by FAD was greater than 20% in 50% of 866 newborns (57% of Malays, 55% of Indians and 41% of Chinese) and 54% of 274 adults (46% of Malays, 65% of Indians and 45% of Chinese). There was a significant negative correlation between GR activity and percentage FAD stimulation in both newborns and adults in all racial groups. Low GR activity and a high percentage FAD stimulation were more prevalent among parents of newborns with low GR activity than among parents of newborns with higher GR activity. Administration of riboflavin to mothers with low GR activity resulted in increased GR activity and a decreased percentage of FAD stimulation. None of the individuals examined had clear clinical manifestations of riboflavin deficiency. It is concluded that subclinical riboflavin deficiency leading to low GR activity is prevalent in Malaysia among adults and newborns, especially among Malays and Indians.
    Matched MeSH terms: Age Factors
  4. Reduced glutathione, glutathione reductase, glutathione peroxidase, and pyruvate kinase in erythrocytes of human newborns and adults in Malaysia
    Eng LI, Wan WP, Ng T
    Br J Haematol, 1973 Nov;25(5):577-84.
    PMID: 4753223
    Matched MeSH terms: Age Factors
  5. Fulltext Prevalence and factors associated with smoking among form four students in Petaling District, Selangor, Malaysia
    Lim KH, Sumarni MG, Kee CC, Christopher VM, Noruiza Hana M, Lim KK, et al.
    Trop Biomed, 2010 Dec;27(3):394-403.
    PMID: 21399579 MyJurnal
    A cross-sectional study was conducted among form four students of secondary schools in the District of Petaling, Selangor, Malaysia from February 2008 to June 2008 with the aim of quantifying the prevalence of smoking and identifying the psychosocial factors related to smoking among adolescents in this district. A two-stage stratified sampling strategy was used to obtain a sample of 1300 students based on an estimated prevalence of 10%. The response rate was 80.5% (1045 out of 1298 students). Results showed that prevalence of smoking was higher among male students (22.3%) compared to females (5.5%) and the median age at smoking initiation was lower among males compared to female smokers (14 years old vs 15 years old). Modifiable risk factors associated with smoking were "percentage of friends who smoke" (OR 2.94, 95% CI [1.71- 5.06]) and "having a brother who smokes" (OR 1.97, 95% CI [1.20-3.31]). There was also a correlation between smoking prevalence and the number of risk factors present. Intensification of health education and anti-smoking programmes and modification of external factors in early adolescence are recommended to prevent smoking initiation.
    Matched MeSH terms: Age Factors
  6. Fulltext A ten year (1999-2008) retrospective study of amoebiasis in University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
    Farhana F, Jamaiah I, Rohela M, Abdul-Aziz NM, Nissapatorn V
    Trop Biomed, 2009 Dec;26(3):262-6.
    PMID: 20237439 MyJurnal
    This is a ten year (1999-2008) retrospective study of amebiasis in patients admitted to UMMC. A total of 34 cases were analyzed. The most common were amebic liver abscess 22(65%) and the rest were amoebic dysentery 12(35%). Majority of the cases occurred among Malaysians 29(85%), with Chinese 14(41%), followed by the Malays 9(26%) and the Indians 6(18%). Foreigners made up of one Indonesian, one Pakistani and three Myanmarese and constituted 5(15%) of the total cases. Males 24(71%) were more commonly affected. Most of the cases occurred between the age group of 40-49 years, 8(23%) and 60 years and above, 8(23%). Age group of 20-50 years constituted 20(60%) of the cases. The most common clinical presentations were fever with chills and rigors 26(76%), diarrhoea 20 (59%), right hypochondrium pain 17(50%), abdominal pain 17(50%), hepatomegaly 16 (47%) and jaundice 7(20%). All were discharged well after treatment except for one case of death in a 69-year-old Chinese male with amebic liver abscess.
    Matched MeSH terms: Age Factors
  7. Patients' and Caregivers' Attitudes Toward Deprescribing in Singapore
    Kua CH, Reeve E, Tan DSY, Koh T, Soong JL, Sim MJL, et al.
    J Gerontol A Biol Sci Med Sci, 2021 05 22;76(6):1053-1060.
    PMID: 31965159 DOI: 10.1093/gerona/glaa018
    BACKGROUND: Knowledge of decision-making preference of patients and caregivers is needed to facilitate deprescribing. This study aimed to assess the perspectives of caregivers and older adults towards deprescribing in an Asian population. Secondary objectives were to identify and compare characteristics associated with these attitudes and beliefs.

    METHOD: A cross-sectional survey of two groups of participants was conducted using the Revised Patients' Attitudes Towards Deprescribing questionnaire. Descriptive results were reported for participants' characteristics and questionnaire responses from four factors (belief in medication inappropriateness, medication burden, concerns about stopping, and involvement) and two global questions. Correlation between participant characteristics and their responses was analyzed.

    RESULTS: A total of 1,057 (615 older adults; 442 caregivers) participants were recruited from 10 institutions in Singapore. In which 511 (83.0%) older adults and 385 (87.1%) caregivers reported that they would be willing to stop one or more of their medications if their doctor said it was possible, especially among older adults recruited from acute-care hospitals (85.3%) compared with older adults in community pharmacies (73.6%). Individuals who take more than five medications and those with higher education were correlated with greater agreement in inappropriateness and involvement, respectively.

    CONCLUSIONS: Clinicians should consider discussing deprescribing with older adults and caregivers in their regular clinical practice, especially when polypharmacy is present. Further research is needed into how to engage older adults and caregivers in shared decision making based on their attitudes toward deprescribing.

    Matched MeSH terms: Age Factors
  8. Fulltext Motives for adult participation in physical activity: type of activity, age, and gender
    Molanorouzi K, Khoo S, Morris T
    BMC Public Health, 2015;15:66.
    PMID: 25637384 DOI: 10.1186/s12889-015-1429-7
    Background: In recent years, there has been a decline in physical activity among adults. Motivation has been shown to be a crucial factor in maintaining physical activity. The purpose of this study was to examine whether motives for participation could accurately discriminate gender, age, and type of physical activity.
    Methods: A quantitative, cross-sectional descriptive research design was employed. The Physical Activity and Leisure Motivation Scale (PALMS) was used to assess motives for physical activity in 1,360 adults (703 males, 657 females) who had been exercising regularly for at least six months. The PALMS consists of 40 items that constitute eight sub-scales (mastery, enjoyment, psychological condition, physical condition, appearance, others' expectations, affiliation, competition/ego). Respondents were divided into two age groups (young adults aged 20 to 40 years and middle-aged adults 41 to 64 years) and five types of activity (individual racing sports plus bowls, team sports, racquet sports, martial arts, and exercise).
    Results: The group discriminant function analyses revealed significant canonical functions correctly classifying the cases into gender (82%), age group (83%), team sport players 76%, individual racing sport plus bowls players 91%, racquet sport players 90%, exercisers 84%, and martial art players 91%. The competition/ego, appearance, physical condition, and mastery sub-scales contributed most to gender differences. Five sub-scales (mastery, psychological condition, others' expectations, affiliation, and enjoyment) contributed most to the discriminant function for age. For type of activity, different sub-scales were the strongest contributors to the discriminant function for each type of PA.
    Conclusion: The findings in this study suggest that strong and important motives for participation in physical activity are different across type of activity, age, and gender in adults. Understanding the motives that influence physical activity participation is critical for developing interventions to promote higher levels of involvement.
    Matched MeSH terms: Age Factors
  9. A comparative study of the aerobic fitness of 421 healthy adult males in Singapore
    Ong TC
    J Sports Sci, 1993 Feb;11(1):71-6.
    PMID: 8450589 DOI: 10.1080/02640419308729966
    The maximum oxygen consumption (VO2 max) of 421 healthy adult males from three ethnic groups (Chinese, Malay and Indian), aged 25-54 years, was assessed from direct analyses of their expired respiratory gases during all-out runs on a treadmill as a measure of aerobic fitness. The subjects were divided into three age groups: group 1, 25-34 years; group 2, 35-44 years; group 3, 45-54 years. Each group was further subdivided into non-exercisers (NE), non-regular exercisers (NRE) and regular exercisers (RE). Consistently within each age group, regular exercisers produced significantly higher VO2 max values compared to non-regular exercisers and non-exercisers. They also met the VO2 max requirements for heavy physical work and compared favourably with the standards of the National Physical Fitness Award of Singapore and Cooper's aerobic fitness classification standards based on North American males. Non-regular exercisers and non-exercisers only met the VO2 max requirements for moderate physical work and compared poorly in both of the aerobic fitness standards.
    Matched MeSH terms: Age Factors
  10. Fulltext Male-lure type, lure dosage, and fly age at feeding all influence male mating success in Jarvis' fruit fly
    Wee SL, Clarke AR
    Sci Rep, 2020 09 14;10(1):15004.
    PMID: 32929156 DOI: 10.1038/s41598-020-72209-x
    Males of certain Dacini fruit flies are strongly attracted to, and feed upon, plant secondary compounds such as methyl eugenol, raspberry ketone and zingerone. The consumed lure is generally found to induce physiological and behavioural changes that enhance the mating performance of lure-fed males. Male Bactrocera jarvisi respond strongly to zingerone from a young age, but only weakly respond to raspberry ketone. We hypothesized that this selective lure-response would be reflected in the physiological importance of the lure to the fly. We found that zingerone feeding by young males resulted in significantly greater mating success in competitive mating trials with lure-deprived flies, but the mating advantage was lost in older males. Lure dosage had a significant effect on the duration of the mating advantage, for example when fed 20 µg of zingerone, the advantage lasted only 1 day post-feeding, but when fed of 50 µg zingerone the advantage lasted 7 days. Raspberry ketone feeding did not confer any mating advantage to males except at one dosage (50 µg) for 1 day after feeding. When given a choice, B. jarvisi females preferred to mate with zingerone-fed versus to raspberry ketone-fed males. This study revealed lure, dosage and age of fly at time of lure administration are all important factors for maximising lure-enhanced fruit fly mating performance. These findings contribute to a better theoretical understanding of the evolution of fruit fly-lure interactions and may help improve fruit fly pest management via the Sterile Insect Technique through semiochemical-mediated enhancement of sterile male mating performance.
    Matched MeSH terms: Age Factors
  11. Fulltext Ageing Effects, Generation Means, and Path Coefficient Analyses on High Kernel Elongation in Mahsuri Mutan and Basmati 370 Rice Populations
    Ab Halim AAB, Rafii MY, Osman MB, Oladosu Y, Chukwu SC
    Biomed Res Int, 2021;2021:8350136.
    PMID: 34095311 DOI: 10.1155/2021/8350136
    High kernel elongation (HKE) is one of the high-quality characteristics in rice. The objectives of this study were to determine the effects of ageing treatments, gene actions, and inheritance pattern of kernel elongation on cooking quality in two populations of rice and determine the path of influence and contribution of other traits to kernel elongation in rice. Two rice populations derived from crosses between MR219 × Mahsuri Mutan and MR219 × Basmati 370 were used. The breeding materials included two F1 progenies from the two populations, and their respective parents were grown in four different batches at a week interval to synchronize the flowering between the female and male plants. Scaling tests and generation means analysis were carried out to determine ageing effects and estimate additive-dominance gene action and epistasis. The estimation of gene interaction was based on quantitative traits. Path coefficient analysis was done using SAS software version 9.4 to determine the path of influence (direct or indirect) of six quantitative traits on HKE. Results obtained showed that nonallelic gene interaction was observed in all traits. The results before ageing and after ageing showed significant differences in all traits, while the gene interaction changed after ageing. The HKE value improved after ageing, suggesting that ageing is an external factor that could influence gene expression. The epistasis effect for HKE obtained from the cross Mahsuri Mutan × MR219 showed duplicate epistasis while that obtained from a cross between Basmati 370 × MR219 showed complimentary epistasis. Besides, the heritability of HKE was higher in Basmati 370 × MR219 compared to that obtained in Mahsuri Mutan × MR219. The path analysis showed that the cooked grain length and length-width ratio positively significantly affected HKE. It was concluded that ageing treatment is an external factor that could improve the expression of HKE. The findings from this study would be useful to breeders in the selection and development of new specialty (HKE) rice varieties.
    Matched MeSH terms: Age Factors
  12. Fulltext Prevalence of acne and its impact on the quality of life in school-aged adolescents in Malaysia
    Hanisah A, Omar K, Shah SA
    J Prim Health Care, 2009 Mar;1(1):20-5.
    PMID: 20690482
    AIM: The objective of this study was to determine the prevalence of facial acne and its impact on the quality of life among adolescents attending secondary schools in Muar, Malaysia.
    METHODS: A cross-sectional study was conducted where 409 samples were selected using stratified cluster random sampling from two secondary schools in Muar, involving Form 1 to Form 5 students. Students were diagnosed clinically and the severity of facial acne was assessed using Global Acne Grading System. A self-reported Cardiff Acne Disability Index was used to assess the quality of life among adolescents who had acne.
    RESULTS: The prevalence of facial acne among the adolescents was 67.5% (n = 276). Facial acne increased with increasing age (p = 0.001). It was more common among males (71.1%) than females (64.6%), p = 0.165. The males also had a higher prevalence of severe acne (p = 0.001). The quality of life was affected by the severity of acne. Students with severe acne had higher levels of Cardiff Acne Disability Index (rho = 0.521).
    CONCLUSION: Facial acne is a common disorder and appears to have a considerable impact on quality of life among adolescents. The above findings should alert health care professionals and the school authorities to actively identify, manage and educate adolescents with facial acne.
    Matched MeSH terms: Age Factors
  13. Multidisciplinary biomarkers aggrieve morbidity in schistosomiasis
    Noha MA, Enas AE, Aly E, Mohamed AE
    Trop Biomed, 2019 Dec 01;36(4):833-844.
    PMID: 33597455
    BACKGROUND: Biomarkers by definition are measurable molecules that mark the evidence of certain pathological processes. Collaboration of various biomarkers influences morbidity of schsitosomiasis in Egypt.

    OBJECTIVES: To identify the biomarkers: CRP, IgE, hemoglobin, ferritin, vitamin D, and platelets in terms of relationship with active and chronic schistosomiasis; demographic data, and their interinfluence.

    STUDY DESIGN: A cross-sectional study.

    METHODS: Parasitological analysis of stool and urine samples, Indirect Hemagglutination Test, Enzyme linked Immunoassay, Hematology Analyzer, and Statistical Package SPSS (Statistical Package for the Social Sciences) version 25.

    RESULTS: Out of 400 participants, 25% suffered of schistosomiasis: active S. mansoni infections in 7 cases (1.75%), S. haematobium infections in 6 cases (1.5%), and chronic schistosomiasis infections in 20 cases (5%). Creactive protein (CRP) likewise IgE levels were higher in active S. mansoni and S. haematobium infections when compared with chronic schistosomiasis. IgE levels appeared to affect infection intensity in S. haematobium. Inversely, hemoglobin (Hb) values were low in active schistosomiasis and upgraded in chronic infection (*p<0.05). Ferritin levels varied in active Schistosoma infection and normalized during chronicity. Vitamin D was reduced in active and chronic schistosomiais. Platelet counts were within normal ranges throughout the study groups. Distribution of ferritin, vit D, and platelets was statistically insignificant among Schistosoma infected population. Age affected only hemoglobin, CRP, and IgE biomarkers. CRP and IgE were in direct relationship together and inversely proportional with hemoglobin (*P <0.05).

    CONCLUSION: Anemia increased proportionally with biomarkers of inflammatory stress (CRP and IgE) in early infections. Meanwhile, Hb and ferritin (iron stores) improved during chronicity. Hypovitaminosis-D associated the entire course of schistosomiasis while platelet counts were not affected.

    Matched MeSH terms: Age Factors
  14. Factors Associated with Apical Periodontitis: A Multilevel Analysis
    Hussein FE, Liew AK, Ramlee RA, Abdullah D, Chong BS
    J Endod, 2016 Oct;42(10):1441-5.
    PMID: 27552839 DOI: 10.1016/j.joen.2016.07.009
    INTRODUCTION: Ignoring the cluster effect is a common statistical oversight that is also observed in endodontic research. The aim of this study was to explore the use of multilevel modeling in investigating the effect of tooth-level and patient-level factors on apical periodontitis (AP).

    METHODS: A random sample of digital panoramic radiographs from the database of a dental hospital was evaluated. Two calibrated examiners (κ ≥ 0.89) assessed the technical quality of the root fillings and the radiographic periapical health status by using the periapical index. Descriptive statistical analysis was carried out, followed by multilevel modeling by using tooth-level and patient-level predictors. Model fit information was obtained, and the findings of the best-fit model were reported.

    RESULTS: A total of 6409 teeth were included in the analysis. The predicted probability of a tooth having AP was 0.42%. There was a statistically significant variability between patients (P 

    Matched MeSH terms: Age Factors
  15. Development and behavior of wild infant-juvenile East Bornean orangutans (Pongo pygmaeus morio) in Danum Valley
    Mendonça RS, Kanamori T, Kuze N, Hayashi M, Bernard H, Matsuzawa T
    Primates, 2017 01;58(1):211-224.
    PMID: 27600514 DOI: 10.1007/s10329-016-0567-6
    Orangutans have a long period of immaturity and the longest inter-birth interval (IBI) of all mammals, which can be explained by their solitary life style, preventing the mother from rearing two offspring simultaneously (solitary life hypothesis) [corrected]. We collected data on mother-offspring dyads living in a primary lowland forest in Danum Valley, East Borneo in an effort to examine the developmental and behavioral patterns of the subspecies Pongo pygmaeus morio. We analyzed developmental changes in mother-offspring distance, contact, and activity budgets in orangutans ranging from 1 to 7 years of age. The results indicated decreased resting and playing with increasing age, whereas feeding, traveling and social play all increased significantly. Mothers' feeding and traveling time were good predictors of their offspring's feeding and traveling activities. Mother-offspring contact lasted longer in resting contexts; contact during traveling was almost non-existent after 4 years of age. Comparisons with previously published data on the Sumatran species Pongo abelli revealed no fundamental differences in these behavioral measures. However, a shorter association time with the mother after behavioral independence is documented for this East Bornean population in comparison to Sumatran populations. These results are best explained by the solitary life hypothesis, in agreement with previous studies. We suggest that environmental constraints in Bornean forests, as well as a lower population density, should be considered when interpreting the differences between Sumatran and Bornean orangutans in both the period of association with mother and the IBI.
    Matched MeSH terms: Age Factors
  16. Discouraging rural to urban migration of the youths in Malaysia
    Nor Bin Abdul-ghani M
    Dev Forum, 1979 Dec;9(2):61-70.
    PMID: 12336534
    Matched MeSH terms: Age Factors
  17. Clinical statistics of odontogenic cysts in West Malaysia
    Rengaswamy V
    Br J Oral Surg, 1977 Nov;15(2):160-5.
    PMID: 271018
    A study was made of the clinical statistics of odontogenic cysts treated at two hospitals in West Malaysia over a 6-year period. The general incidence of the individual cyst-types is similar to that reported in previous studies. A marked difference in the age distribution of radicular cysts emerged and 80% of the residual cysts in the survey occurred amongst the Chinese population. Reasons for the distribution variation are discussed.
    Matched MeSH terms: Age Factors
  18. East Asia Review, 1973. To sum up
    Keeny SM
    Stud Fam Plann, 1974 May;5(5):174-6.
    PMID: 4828075 DOI: 10.2307/1965310
    PIP: Observations are made related to the review of family planning activities in East Asia in 1973. The number of new acceptors for the region increased from 2.7 million in 1972 to 3.4 million in 1973. The leaders were Indonesia, which almost doubled its achievement of calendar year 1972, the Philippines, and Korea. In Thailand, the number of new acceptors dropped by about 10%. South Vietnam is the only country in the region without an official policy. Most couples still think that the ideal number of children is 4, with at least 2 sons. Some religious opposition does exist, particularly with reference to sterlization and abortion. More attention is being paid to women in their 20s. Sterilization and condoms are becoming more popular. Korea reports a sharp increase in vasectomies. Better methods and continuation rates should be stressed. In Taiwan a couple who start with 1 method and continue to practice some method lower their reproduction rate by 80%. More responsibility is being delegated to nurses and midwives, but too slowly. In Indonesia, the number of field workers rose from 3774 in 1972 to 6275 in 1973. The Philippines and Thailand are experimenting to see what kind of workers get best results and under what kind of salary and incentive arrangements. In-service training tends to be neglected, but preservice training is improving. Costs, in general, have risen, though in Korea the cost per acceptor has dropped from US$8.00 to US$7.80. Korea and Taiwan have reduced their annual population growth rates by more than 1/3 in 10 years, from 30 to 19-20 per 1000 each. Singapore's rate is 17 and Hong Kong's 14 (exclusive of inmigration). The number of couples currently practicing contraception in Singapore is 71%. Target systems assigning quotas to clinics are generally used except in Thailand and Malaysia, where programs emphasize maternal and child health, rather than population planning. Most programs require about 10 years to get the annual growth rate down to 2% by voluntary family planning. To get it down to 1.5% will probably take another 10 years.
    Matched MeSH terms: Age Factors
  19. Children's judgments of age in Sarawak
    Looft WR, Rayman JR, Rayman BB
    J Soc Psychol, 1972 Apr;86(2):181-5.
    PMID: 5013924
    Matched MeSH terms: Age Factors
  20. The early immunisation of infants in Malaysia
    Chen ST, Choong MM
    Med J Malaya, 1971 Sep;26(1):15-9.
    PMID: 4258569
    Matched MeSH terms: Age Factors
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