title: [Experimental and clinical studies of human natural killer cell activity in healthy subjects and patients with cancer of the digestive tract].
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D003601:Cytotoxicity Tests, Immunologic; D004938:Esophageal Neoplasms / Q000276:immunology*; D005260:Female; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D010844:Picibanil / Q000627:therapeutic use; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000276:immunology*
chemical_list: D010844:Picibanil