TY - JOUR T1 - The impact of delayed switch to second-line antiretroviral therapy on mortality, depending on failure time definition and CD4 count at failure JO - American Journal of Epidemiology UR - https://eprints.whiterose.ac.uk/id/eprint/157133 PY - 2020/08/01 AU - Bell Gorrod H AU - Fox MP AU - Boulle A AU - Prozesky H AU - Wood R AU - Tanser F AU - Davies M-A AU - Schomaker M ED - DO - DOI: 10.1093/aje/kwaa049 PB - Oxford University Press (OUP) VL - 189 IS - 8 SP - 811 EP - 819 Y2 - 2025/11/29 ER -