TY - JOUR A1 - Allen, M.C. A1 - Alexander, G.R. A1 - Tompkins, M.E. A1 - Hulsey, T.C. T1 - Racial differences in temporal changes in newborn viability and survival by gestational age Y1 - 2000 DO - 10.1046/j.1365-3016.2000.00255.x JF - Paediatric and Perinatal Epidemiology VL - 14 IS - 2 SP - 152 EP - -158 ER -