Retention in care and connection to care among HIV-infected patients on antiretroviral therapy in Africa: estimation via a sampling-based approach.

Geng EH, Glidden DV, Bwana MB, Musinguzi N, Emenyonu N, Muyindike W, Christopoulos KA, Neilands TB, Yiannoutsos CT, Deeks SG, Bangsberg DR, Martin JN