TY - JOUR A1 - Wilcox, A.J. T1 - On the Importance – and the Unimportance – of Birthweight Y1 - 2001a DO - 10.1093/ije/30.6.1233 JF - International Journal of Epidemiology VL - 30 IS - 6 SP - 1233 EP - -1241 ER -