@article{doi:,
title = {PRepregnancy contraceptive use among teens with unintended pregnancies resulting in live births—pregnancy risk assessment monitoring system (prams), 2004-2008},
journal = {JAMA},
volume = {307},
number = {12},
pages = {1244-1246},
year = {2012},
doi = {},
URL = { + http://dx.doi.org/},
eprint = {/data/Journals/JAMA/22495/jwr0328_1244_1246.pdf}
}