TY - JOUR A1 - Karim, S.A. A1 - Karim, Q.A. A1 - Baxter, C. T1 - Antiretroviral therapy: challenges and options in South Africa Y1 - 2003 DO - 10.1016/S0140-6736(03)14700-9 JF - The Lancet VL - 362 IS - 9394 ER -