title: Australia antigen and hepatitis.
mesh_terms: D000941:Antigens; D001315:Australia; D004314:Down Syndrome / Q000276:immunology; D005828:Genetics, Population; D006506:Hepatitis A / Q000209:etiology*; D006509:Hepatitis B / Q000209:etiology; D006801:Humans
chemical_list: D000941:Antigens