"If we lose it, we are worried": Individual and provider level perceptions towards weight change among people living with HIV who undergo TB screening in routine health care settings in Gauteng Province, South Africa

“如果我们体重下降，我们会很担心”：南非豪登省常规医疗机构中接受结核病筛查的艾滋病毒感染者对体重变化的个人和医疗服务提供者的看法