1 Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia
2 Department of Obstetrics and Gynecology, Hospital Serdang, 43400, Selangor Darul Ehsan, Malaysia
3 Department of Radiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia
4 Department of Obstetrics and Gynecology, Hospital Putrajaya, 62300, Putrajaya, Malaysia