Knowledge, attitudes, and barriers to HIV testing among youth in Kumba, Cameroon: A cross-sectional qualitative community-based focus group study - Frederick Nchang Cho; Marie Clarie Fien Ndim; Diane Zinkeng Tongwa; Christabel Afor Tatah; Franklin Ngwesse Ngome; Eugine Mbuh Nyanjoh; Andrew N Tassang (PLoS ONE, 2025)