Effectiveness of a Mobile Health Intervention (DOT Selfie) in Increasing Treatment Adherence Monitoring and Support for Patients With Tuberculosis in Uganda: Randomized Controlled Trial - Juliet Nabbuye Sekandi; Esther Buregyeya; Sarah Zalwango; Damalie Nakkonde; Patrick Kaggwa; Trang Ho Thu Quach; David Asiimwe; Lynn Atuyambe; Kevin Dobbin (JMIR mHealth and uHealth)