title: Serum complement systems of ectothermic vertebrates.
authors.forename: T L
authors.initials: TL
authors.lastname: Koppenheffer
mesh_terms: D000663:Amphibians / Q000276:immunology; D000818:Animals; D003167:Complement Activation; D005399:Fishes / Q000276:immunology; D012104:Reptiles / Q000276:immunology; D014714:Vertebrates / Q000276:immunology*