Immunoresponses and natural killer activity of nude and normal mice under conventional and germfree conditions.
D000375:Aging; D000818:Animals; D002460:Cell Line; D006224:Cricetinae; D003602:Cytotoxicity, Immunologic; D005856:Germ-Free Life; D007694:Killer Cells, Natural / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D008813:Mice, Inbred ICR; D008815:Mice, Inbred Strains; D008819:Mice, Nude