TY  - JOUR
A1  - Brown, M.S.
T1  - Coitus, the proximate determinant of conception: inter-country variance in sub-Saharan Africa
Y1  - 2000
DO  - 10.1017/S0021932000001450
JF  - Journal of Biosocial Science
VL  - 32
IS  - 2
SP  - 145
EP  - -159

ER  -