title: [Occurrence of hepatitis in Norwegian institutions for the mentally retarded].
mesh_terms: D003428:Cross Infection; D006525:Hepatitis, Viral, Human / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D008607:Intellectual Disability; D009664:Norway; D012112:Residential Facilities
vernacular_title: Forekomst av hepatitt i norske internatinstitusjoner for psykisk utviklingshemmede.