Collins, Intira Jeannie; Wools-Kaloustian, Kara; Goodall, Ruth; Haas, Andreas D; Smith, Colette (2019). Incidence of switching to second-line antiretroviral therapy and associated factors in children with HIV: an international cohort collaboration. The Lancet HIV, 6(2), e105-e115. Elsevier 10.1016/S2352-3018(18)30319-9