[On the anticomplement activity of antigens from normal HeLa cell cultures and those infected with vaccinia virus].
D018929:Cell Culture Techniques; D003169:Complement Inactivator Proteins; D006367:HeLa Cells; D006801:Humans; D055633:Immune System Phenomena; D009369:Neoplasms / Q000276:immunology*; D014615:Vaccinia / Q000821:virology*; D014616:Vaccinia virus
D003169:Complement Inactivator Proteins; C012749:anticomplement
NEOPLASMS/immunology; VACCINIA/virology