Prabhu J K, Rani R, Nayak N K, Natarajan P
Department of Obstetrics and Gynaecology, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Pudhucherry, India.
J Obstet Gynaecol. 2010;30(5):526-7. doi: 10.3109/01443615.2010.486087.