@article{Gage2013,
author = {Gage, T. B. and Fang, F. and O’Neill, E. and DiRienzo, G.},
title= {Maternal education, birth weight, and infant mortality in the United States},
year = {2013},
doi = {10.1007/s13524-012-0148-2},
volume = {50},
number = {2},
pages = {615--635},
}