Cardiovascular risk knowledge stratified by predicted cardiovascular risk level among people living with HIV attending a tertiary HIV care centre in Gaborone, Botswana: A cross-sectional study

博茨瓦纳哈博罗内一家三级艾滋病治疗中心就诊的艾滋病毒感染者按预测心血管风险水平分层的心血管风险知识：一项横断面研究