TY - JOUR A1 - Raine, T. A1 - Harper, C. A1 - Paukku, M. A1 - Darney, P. T1 - Race, adolescent contraceptive choice, and pregnancy at presentation to a family planning clinic Y1 - 2002 DO - 10.1016/S0029-7844(01)01714-8 JF - Obstetrics and Gynecology VL - 99 IS - 2 SP - 241 EP - -247 ER -