In vitro testing of enhancement.
D000645:Ammonium Sulfate; D000818:Animals; D000914:Antibodies, Viral; D000936:Antigen-Antibody Complex; D003165:Complement System Proteins; D003601:Cytotoxicity Tests, Immunologic; D007158:Immunologic Techniques; D008214:Lymphocytes / Q000276:immunology; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000276:immunology*; D051381:Rats; D014181:Transplantation Immunology; D014184:Transplantation, Homologous
D000914:Antibodies, Viral; D000936:Antigen-Antibody Complex; D003165:Complement System Proteins; D000645:Ammonium Sulfate