@article{Howard2006,
author = {Howard, D.L. and Marshall, S.S. and Kaufman, J.S. and Savitz, D.A.},
title= {Variations in low birth weight and preterm delivery among Blacks in relation to ancestry and nativity: New York City, 1998–2002},
year = {2006},
doi = {10.1542/peds.2006-0665},
journal = {Pediatrics},
volume = {118},
number = {5},
pages = {1399‒1405},
}