title: Letter: Beta2 microglobulin in pleural fluids.
mesh_terms: D000328:Adult; D000368:Aged; D001609:Beta-Globulins / Q000032:analysis*; D005260:Female; D006801:Humans; D007154:Immune System Diseases / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009961:Orosomucoid / Q000032:analysis; D010996:Pleural Effusion / Q000032:analysis*; D001613:beta 2-Microglobulin / Q000032:analysis*
chemical_list: D001609:Beta-Globulins; D009961:Orosomucoid; D001613:beta 2-Microglobulin