title: A short note on the birth order, parental age and the incidence of oral clefts.
mesh_terms: D000293:Adolescent; D000328:Adult; D001722:Birth Order; D002648:Child; D002971:Cleft Lip / Q000453:epidemiology*; D002972:Cleft Palate / Q000453:epidemiology*; D004200:Diseases in Twins / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy