Bunupuradah T, Techasaensiri C, Keadpudsa S, Thammasala S, Uanithirat A, Sahakijpicharn T, Prasitsuebsai W, Anugulruengkitt S, Jantarabenjakul W, Puthanakit T on belaf of the study team. Long term efficacy and safety of atazanavir/ritonavir with tenofovir diproxil fumarate in HIV-infected adolescents; 4 years analysis.