@article{Chen2007,
author = {Chen, X.K. and Wen, S.W. and Fleming, N. and Demissie, K. and Rhoads, G.C. and Walker, M.},
title= {Teenage pregnancy and adverse birth outcomes: A large population based retrospective cohort study},
year = {2007},
doi = {10.1093/ije/dyl284},
volume = {36},
number = {2},
pages = {368--373},
}