Olaolorun Funmilola M, Hinson Laura, Burke Anne
Department of Population, Family, and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA.
Int J Gynaecol Obstet. 2013 Nov;123 Suppl 1:e1. doi: 10.1016/j.ijgo.2013.08.002. Epub 2013 Aug 7.