TY - JOUR A1 - Mensch, B.S. A1 - Grant, M.J. A1 - Blanc, A.K. T1 - The changing context of sexual initiation in sub-Saharan Africa Y1 - 2006 DO - 10.1111/j.1728-4457.2006.00147.x JF - Population and Development Review VL - 32 IS - 4 SP - 699 EP - -727 ER -