Prabhu M, Shravanahalli S, Thakur Y, Karunaratna C, Ikomi A
Department of Obstetrics and Gynaecology, Basildon and Thurrock University Hospitals NHS Foundation Trust, Essex, UK.
J Obstet Gynaecol. 2008 Apr;28(3):345-6. doi: 10.1080/01443610802048032.