[Occurrence of anencephalus and spina bifida in the Nord-Pas-de-Calais region].
D000757:Anencephaly / Q000453:epidemiology*; D005602:France; D006801:Humans; D007231:Infant, Newborn; D016136:Spina Bifida Occulta / Q000453:epidemiology*
Frequence de l'anencephalie et du spina-bifida dans la region Nord-Pas-de-Calais.