Aetiology of vaginal discharge, urethral discharge, and genital ulcer in sub-Saharan Africa: A systematic review and meta-regression. - Michalow J; Walters MK; Edun O; Wybrant M; Davies B; Kufa T; Mathega T; Chabata ST; Cowan FM; Cori A; Boily MC; Imai-Eaton JW (PLoS medicine, 2024)