title: Absence of Australia antigen and antibody in patients with rheumatic diseases.
mesh_terms: D000906:Antibodies; D000917:Antibody Formation; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000276:immunology*; D003168:Complement Fixation Tests; D006515:Hepatitis B virus; D006801:Humans
chemical_list: D000906:Antibodies