TI  - PRepregnancy contraceptive use among teens with unintended pregnancies resulting in live births—pregnancy risk assessment monitoring system (prams), 2004-2008
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {1244-1246},
VI  - 307
IP  - 12
AID  -  [doi]
4100  - http://dx.doi.org/
SO  - JAMA March 28, 2012 307(12):1244