mHealth strategies related to HIV postexposure prophylaxis knowledge and access: systematic literature review, technology prospecting of patent databases, and systematic search on app stores - Queiroz, Artur Acelino Francisco Luz Nunes; Mendes, Isabel Amélia Costa; Costa, Simone de Godoy; Lapão, Luís Velez; Dias, Sónia (JMIR mHealth and uHealth, 2021)