Prevention challenges with current perceptions of HIV burden among HIV-negative and never-tested men who have sex with men in the Netherlands: a mixed-methods study

荷兰男男性行为者中未接受过艾滋病毒检测且未感染艾滋病毒的男性对艾滋病毒负担的现有认知所面临的预防挑战：一项混合方法研究