Bataille, R Immunofixation improves the detection of monoclonal gammopathy of undetermined significance (M.G.U.S.) in patients with rheumatoid arthritis. [electronic resource] - Clinical and experimental rheumatology - 259-61 p. digital Publication Type: Journal Article ISSN: 0392-856X Subjects--Topical Terms: Arthritis, Rheumatoid--complicationsCross-Sectional StudiesFranceHumansHypergammaglobulinemia--complicationsImmunoglobulin A--analysisImmunoglobulin G--analysisImmunoglobulin M--analysisImmunologic TechniquesMultiple Myeloma--etiologyWaldenstrom Macroglobulinemia--etiology