title: Australia antigen in systemic lupus erythematosus.
mesh_terms: D003168:Complement Fixation Tests; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000382:microbiology*; D012217:Rheumatoid Factor
chemical_list: D012217:Rheumatoid Factor