@article{Schempf2007,
author = {Schempf, A.H. and Branum, A.M. and Lukacs, S.L. and Schoendorf, K.C.},
title= {The contribution of preterm birth to the black–white infant mortality gap, 1990 and 2000},
year = {2007},
doi = {10.2105/AJPH.2006.093708},
volume = {97},
number = {7},
pages = {1255--1260},
}