title: Schistosoma mansoni: complement activation by antigenic preparations.
mesh_terms: D000818:Animals; D000941:Antigens / Q000276:immunology*; D003167:Complement Activation; D004306:Dose-Response Relationship, Immunologic; D005260:Female; D006801:Humans; D010063:Ovum / Q000276:immunology; D012550:Schistosoma mansoni / Q000276:immunology*
chemical_list: D000941:Antigens