Khoo Chin Meng, Lee Kok Onn
Department of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Level 10, Singapore 119228, Singapore.
Department of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Level 10, Singapore 119228, Singapore.
Best Pract Res Clin Obstet Gynaecol. 2014 Apr;28(3):e3. doi: 10.1016/j.bpobgyn.2014.01.003. Epub 2014 Jan 23.