title: [Hepatitis A in an institution for the mentally retarded in Aomori prefecture].
mesh_terms: D000293:Adolescent; D002648:Child; D003428:Cross Infection / Q000453:epidemiology*; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D007564:Japan; D008297:Male; D012047:Rehabilitation Centers