title: Factors affecting complement activity in sera.
mesh_terms: D000818:Animals; D001800:Blood Specimen Collection; D003168:Complement Fixation Tests; D003169:Complement Inactivator Proteins; D006168:Guinea Pigs; D006801:Humans; D008722:Methods; D010424:Pentobarbital / Q000494:pharmacology*; D013696:Temperature
chemical_list: D003169:Complement Inactivator Proteins; D010424:Pentobarbital