Integrating Enhanced HIV Pre-exposure Prophylaxis Into a Sexually Transmitted Infection Clinic in Lilongwe: Protocol for a Prospective Cohort Study oleh Sarah E Rutstein, Mitch Matoga, Jane S Chen, Esther Mathiya, Beatrice Ndalama, Naomi Nyirenda, Naomi Bonongwe, Shyreen Chithambo, Maganizo Chagomerana, Gerald Tegha, Mina C Hosseinipour, Michael E Herce, Edward Jere, Robert G Krysiak, Irving F Hoffman