title: Letter: Lymphocytes in chronic lymphatic leukaemia.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D066298:In Vitro Techniques; D007945:Leukemia, Lymphoid / Q000276:immunology*; D007959:Lymphocyte Culture Test, Mixed; D008214:Lymphocytes / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology