Njoroge Betty, Chirenje Zvavahera Mike, Pandey Bina, Mirembe Florence, Joshi Smita, Low-Beer Naomi, Maslankowski Lisa A
Department of OBGY, University of Nairobi, P.O. Box 19676, KNH Post code 00202, Nairobi, Kenya.
J Acquir Immune Defic Syndr. 2004 Oct;37 Suppl 3:S150-1.