Mehta Sumita, Singla Anshuja, Rajaram Shalini
Department of Obstetrics and Gynecology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India.
Int J Gynaecol Obstet. 2012 Aug;118(2):172. doi: 10.1016/j.ijgo.2012.03.026. Epub 2012 May 9.