Reducing vertical HIV transmission in Kinshasa, Democratic Republic of Congo: trends in HIV prevalence and service delivery. - Behets, Frieda; Mutombo, GertrudeMusuamba; Edmonds, Andrew; Dulli, Lisa; Belting, MartineTabala; Kapinga, Melanie; Pantazis, Athena; Tomlin, Holly; Okitolonda, Emile; for the PTME Group (AIDS Care, 2009)