TY - JOUR A1 - Powers, D.A. A1 - Frisbie, W.P. A1 - Hummer, R.A. A1 - Pullum, S.G. A1 - Solis, P. T1 - Race/ethnic differences and age-variation in the effects of birth outcomes on infant mortality in the US Y1 - 2006 DO - 10.4054/DemRes.2006.14.10 VL - 14 IS - 10 ER -