title: Anticomplementary activity of sera from patients with connective tissue disease and normal subjects.
mesh_terms: D003095:Collagen Diseases / Q000097:blood*; D003168:Complement Fixation Tests; D003165:Complement System Proteins; D006801:Humans; D007106:Immune Sera; D008180:Lupus Erythematosus, Systemic / Q000097:blood*; D011234:Precipitins; D013167:Spondylitis, Ankylosing / Q000097:blood*; D014461:Ultracentrifugation; D005719:gamma-Globulins
chemical_list: D007106:Immune Sera; D011234:Precipitins; D005719:gamma-Globulins; D003165:Complement System Proteins