Usability and quality evaluation of the World Health Organization SkinNTDs app among frontline health workers in Cameroon: A mixed methods study. - Moungui, Henri Claude; Tonkoung Iyawa, Paul; Nana-Djeunga, Hugues; Ruiz-Postigo, Jose Antonio; Carrion, Carme (PLoS Neglected Tropical Diseases, 2025)