title: A comparison of methods for the molecular quantitation of the fourth component of human complement.
mesh_terms: D000818:Animals; D003165:Complement System Proteins / Q000032:analysis*; D004492:Edetic Acid; D004912:Erythrocytes / Q000276:immunology; D006461:Hemolysis; D006801:Humans; D007120:Immunochemistry; D007456:Iodine Isotopes; D008722:Methods; D012756:Sheep; D013053:Spectrophotometry
chemical_list: D007456:Iodine Isotopes; D003165:Complement System Proteins; D004492:Edetic Acid