Considering the serious and fatal nature of esophageal carcinoma and as prevalence in the population on the banks of Caspian sea and northern region (Azerbaijan, Khorassan, Gilan, Mazandaran, Golestan and Kurdistan) along with the importance of its early diagnosis in the initial stage in order to increase the survival period of the patient, we aimed to proceed in regard to these factual observations so that this study should be an incentive and beginning of our future perfect study.
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.