title: "Unblocking" serum activity in vitro in the polyoma system may correlate with antitumour effects of antiserum in vivo.
mesh_terms: D000818:Animals; D003601:Cytotoxicity Tests, Immunologic; D007106:Immune Sera / Q000008:administration & dosage; D008214:Lymphocytes / Q000276:immunology; D009365:Neoplasm Regression, Spontaneous; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000209:etiology / Q000276:immunology*; D011120:Polyomavirus; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D007106:Immune Sera