title: Birth prevalence of Poland sequence and proportion of its familial cases.
authors.forename: A
authors.initials: A
authors.lastname: Czeizel
authors.forename: M
authors.initials: M
authors.lastname: Vitéz
authors.forename: W
authors.initials: W
authors.lastname: Lenz
mesh_terms: D006801:Humans; D006814:Hungary / Q000453:epidemiology; D011045:Poland Syndrome / Q000453:epidemiology* / Q000235:genetics; D015995:Prevalence; D013576:Syndactyly / Q000453:epidemiology*