TY  - JOUR
A1  - Santelli, J.
A1  - Morrow, B.
A1  - Anderson, J.E.
A1  - Lindberg, L.D.
T1  - Contraceptive use and pregnancy risk among U.S. high school students, 1991-2003
Y1  - 2006
DO  - 10.1363/3810606
JF  - Perspectives on Sexual and Reproductive Health
VL  - 38
IS  - 2
SP  - 106
EP  - -111

ER  -