Acceptability of COVID-19 self-testing among social and clinical vulnerable populations using a decentralized testing model in Abuja, Nigeria; A mixed methods analysis of an implementation study. - Isere EE; Bimba JS; Dunkley Y; Atuwo D; Nightingale E; Ekwu J; Ibrahim AM; Adamu GO; Omoregie G; Okonkwo Y; Desmond N; Hatzold K; et al. (PLOS global public health, 2026)