title: Influence of vitamin A on immunological response.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis; D004912:Erythrocytes / Q000276:immunology; D005856:Germ-Free Life; D006084:Graft Rejection; D006386:Hemagglutination Tests; D007108:Immune Tolerance / Q000187:drug effects*; D007111:Immunity, Cellular; D007274:Injections, Intraperitoneal; D051379:Mice; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D012756:Sheep / Q000276:immunology; D016038:Skin Transplantation; D014184:Transplantation, Homologous; D014801:Vitamin A / Q000494:pharmacology*
chemical_list: D000906:Antibodies; D014801:Vitamin A