title: The incidence of Australia antigen among the population of Bucharest.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002353:Carrier State / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D006506:Hepatitis A / Q000382:microbiology; D006509:Hepatitis B / Q000453:epidemiology*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D005779:Immunodiffusion; D012383:Romania
chemical_list: D006511:Hepatitis B Antigens