Nor Azlin M I, Abd Rahman R, Abdul Karim A K, Sulaiman A S, Mahdy Z A
Department of Obstetrics and Gynaecology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Kuala Lumpur, Malaysia.
J Obstet Gynaecol. 2013 Aug;33(6):631-2. doi: 10.3109/01443615.2013.807781.