TY - JOUR A1 - Boardman, J.D. A1 - Powers, D.A. A1 - Padilla, Y.C. A1 - Hummer, R.A. T1 - Low birth weight, social factors, and developmental outcomes among children in the United States Y1 - 2002 DO - 10.1353/dem.2002.0015 JF - Demography VL - 39 IS - 2 SP - 353 EP - -368 ER -