TY - JOUR A1 - Doherty, T.M. A1 - McCoy, D. A1 - Donohue, S. T1 - Health system constraints to optimal coverage of the prevention of mother-to-child HIV transmission programme in South Africa: lessons from the implementation of the national pilot programme Y1 - 2005 DO - 10.1111/1467-985X.00202 JF - African Health Sciences VL - 5 IS - 3 SP - 213 EP - -218 ER -