title: Cold-reacting antibodies: the enhancement of antibody fixation by the first component of complement (C'1a).
mesh_terms: D001323:Autoantibodies; D002118:Calcium; D003168:Complement Fixation Tests; D003165:Complement System Proteins; D004492:Edetic Acid; D004912:Erythrocytes; D006384:Hemagglutination / Q000502:physiology*; D006461:Hemolysis; D006358:Hot Temperature; D006801:Humans
chemical_list: D001323:Autoantibodies; D003165:Complement System Proteins; D004492:Edetic Acid; D002118:Calcium