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)