Adherence to antiretroviral therapy among people living with HIV attending medication-assisted treatment clinics in Dar es Salaam, Tanzania: a cross-sectional study

坦桑尼亚达累斯萨拉姆药物辅助治疗诊所中艾滋病毒感染者抗逆转录病毒疗法的依从性：一项横断面研究