title: Letter: Spontaneous cytotoxic activity as a test of human lymphocyte function.
mesh_terms: D000818:Animals; D002860:Chromium Radioisotopes; D003601:Cytotoxicity Tests, Immunologic; D004912:Erythrocytes / Q000276:immunology; D006801:Humans; D007104:Immune Adherence Reaction; D012515:Mast-Cell Sarcoma / Q000473:pathology; D051379:Mice; D011817:Rabbits; D012756:Sheep / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D002860:Chromium Radioisotopes