Institutional prevention policies and rates of Group B Streptococcus infection among HIV-infected pregnant women and their infants in Latin America - Joao, Esaú; Gouvea, Maria I.; Freimanis-Hance, Laura; Cohen, Rachel A.; Read, Jennifer S.; Melo, Victor; Duarte, Geraldo; Ivalo, Silvina; Machado, Daisy M.; Pilotto, José; Siberry, George K. (International Journal of Gynecology and Obstetrics, 2013)