Naidoo K, Ramruthan J, Reddy M, Lancaster R. A third-line antiretroviral therapy register to track patient clinical and virological outcomes. S Afr Med J [Internet]. 2022 Aug. 1 [cited 2025 Nov. 13];112(8):511-2. Available from: https://samajournals.co.za/index.php/samj/article/view/94