title: [Incidence of hepatitis B in residents of homes for mentally retarded].
authors.forename: H
authors.initials: H
authors.lastname: Isermann
mesh_terms: D015331:Cohort Studies; D005858:Germany; D006509:Hepatitis B / Q000453:epidemiology* / Q000209:etiology; D006778:Hospitals, Psychiatric; D006801:Humans; D008607:Intellectual Disability