title: Letter: K cells and the liver.
mesh_terms: D001666:Binding Sites, Antibody; D002460:Cell Line; D003601:Cytotoxicity Tests, Immunologic; D006505:Hepatitis / Q000276:immunology; D006509:Hepatitis B / Q000276:immunology; D006801:Humans; D008099:Liver / Q000276:immunology* / Q000473:pathology; D008214:Lymphocytes / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology / Q000473:pathology