Is the Risk of HIV Acquisition Increased during and Immediately after Pregnancy? A Secondary Analysis of Pooled HIV Community-Based Studies from the ALPHA Network - Marston, M; Newell, ML; Crampin, A; Lutalo, T; Musoke, R; Gregson, S; Nyamukapa, C; Nakiyingi-Miiro, J; Urassa, M; Isingo, R; Zaba, B (PLOS ONE, 2013)