Hassanin Ibrahim M A, Shahin Ahmed Y, Badawy Mohamed S, Karam Khalid
Department of Obstetrics and Gynecology, Faculty of Medicine, Sohag University, Sohag, Egypt.
Int J Gynaecol Obstet. 2011 Nov;115(2):200-1. doi: 10.1016/j.ijgo.2011.05.024. Epub 2011 Sep 1.