Prenatal Prediction of Risk of the Fetal Hydantoin SyndromeNEJM 322:1567-1572, Buehler,B.A.,et al, 1990
Diphenylhydantoin & Selected Congenital MalformationsNEJM 289:1049, 1973; 289:1089973., Monson,R.,et al, 1973