Zakar Rubeena, Zakar Muhammad Zakria, Hornberg Claudia, Kraemer Alexander
Department of Public Health Medicine, School of Public Health, University of Bielefeld, Germany.
Int J Gynaecol Obstet. 2012 Jan;116(1):77-8. doi: 10.1016/j.ijgo.2011.08.006. Epub 2011 Oct 26.