Stepped care to optimize pre-exposure prophylaxis (PrEP) effectiveness in pregnant and postpartum women (SCOPE-PP) in South Africa: a randomized control trial. - Joseph Davey, Dvora Leah; Dovel, Kathryn; Cleary, Susan; Khadka, Nehaa; Mashele, Nyiko; Silliman, Miriam; Mvududu, Rufaro; Nyemba, Dorothy C.; Coates, Thomas J.; Myer, Landon (BMC Public Health, 2022)