TY - JOUR A1 - Pettifor, A.E. A1 - Hudgens, M.G. A1 - Levandowski, B.A. A1 - Rees, H.V. A1 - Cohen, M.S. T1 - Highly efficient HIV transmission to young women in South Africa Y1 - 2007 DO - 10.1097/QAD.0b013e3280f00fb3 JF - AIDS VL - 21 IS - 7 SP - 861 EP - -865 ER -