Bassey Tom Etuknwa, Onyemaechi Okpara Azu, Aniekan Imo Peter, Gabriel John Ekandem, Kayode Olaifa, Aquaisua Nyong Aquaisua, Enobong Ikpeme

Korean J Obstet Gynecol.2012;55(5):309-314.   Published online 2012 May 16     DOI: http://dx.doi.org/10.5468/KJOG.2012.55.5.309