title: Letter: Stimulation of K cells by immunotherapy.
mesh_terms: D000293:Adolescent; D001500:BCG Vaccine / Q000627:therapeutic use*; D002460:Cell Line; D002648:Child; D002675:Child, Preschool; D003601:Cytotoxicity Tests, Immunologic; D005500:Follow-Up Studies; D006801:Humans; D007945:Leukemia, Lymphoid / Q000097:blood / Q000188:drug therapy / Q000628:therapy*; D008214:Lymphocytes / Q000276:immunology*
chemical_list: D001500:BCG Vaccine