title: A study of lip and palate clefting on Merseyside.
mesh_terms: D002648:Child; D002971:Cleft Lip / Q000145:classification / Q000453:epidemiology*; D002972:Cleft Palate / Q000145:classification / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D012042:Registries; D006113:United Kingdom