title: Immunology of lymphocytes in pleurisy and in effusions due to pleural infiltration by chronic lymphocytic leukemia cells.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology*; D003937:Diagnosis, Differential; D006801:Humans; D007945:Leukemia, Lymphoid / Q000175:diagnosis*; D008213:Lymphocyte Activation; D010996:Pleural Effusion / Q000209:etiology* / Q000276:immunology; D010998:Pleurisy / Q000175:diagnosis*; D013601:T-Lymphocytes / Q000276:immunology*; D014396:Tuberculosis, Pleural / Q000175:diagnosis*