@article{Parker1994,
author = {Parker, J.D. and Schoendorf, K.C. and Kiely, J.L.},
title= {Associations between measures of socioeconomic status and low birth weight, small for gestational age, and premature delivery in the United States},
year = {1994},
doi = {10.1016/1047-2797(94)90082-5},
journal = {Annals of Epidemiology },
volume = {4},
number = {4},
pages = {271--278},
}