Uptake of HIV Self-testing Among Adolescents and Young Adults in Nigeria: A Secondary Observational Analysis of a Stepped-Wedge, Cluster-Randomized Trial. - Tahlil KM; Pettifor AE; Westreich D; Edwards JK; Tang W; Gbajabiamila T; Xian H; Nwaozuru U; Day S; Shah SJ; Rosenberg NE; Oladele D; et al. (AIDS and behavior, 2026)