TY  - JOUR
A1  - Forrest, J.D. 
T1  - Epidemiology of Unintended Pregnancy and Contraceptive Use
Y1  - 1994
DO  - 10.1016/S0002-9378(94)05008-8
JF  - American Journal of Obstetrics and Gynecology 
VL  - 170

ER  -