High failure rates of protease inhibitor-based antiretroviral treatment in rural Tanzania - A prospective cohort study. oleh Rahel E Bircher, Alex J Ntamatungiro, Tracy R Glass, Dorcas Mnzava, Amina Nyuri, Herry Mapesi, Daniel H Paris, Manuel Battegay, Thomas Klimkait, Maja Weisser, KIULARCO study group