Immunological enhancement.
D000818:Animals; D001327:Autoimmune Diseases; D007106:Immune Sera; D007114:Immunization; D051379:Mice; D009368:Neoplasm Transplantation; D011817:Rabbits; D051381:Rats; D014181:Transplantation Immunology; D014183:Transplantation, Heterologous
D007106:Immune Sera