TY - JOUR A1 - Vangen, Siri A1 - Stoltenberg, Camilla A1 - Skjaerven, Rolv A1 - Magnus, Per A1 - Harris, Jennifer R A1 - Stray-Pedersen, Babill T1 - The heavier the better? Birthweight and perinatal mortality in different ethnic groups Y1 - 2002 DO - 10.1093/ije/31.3.654 JF - International Journal of Epidemiology VL - 31 IS - 3 SP - 654 EP - -660 ER -