title: Serum hepatitis at a home for the aged.
mesh_terms: D000368:Aged; D002353:Carrier State; D004197:Disease Reservoirs; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology* / Q000209:etiology; D006511:Hepatitis B Antigens; D006707:Homes for the Aged; D006801:Humans; D008297:Male; D013548:Sweden
chemical_list: D006511:Hepatitis B Antigens