RT Journal Article SR Electronic T1 The Nature of Anaemia in Rheumatoid Arthritis JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 133 OP 137 DO 10.1136/ard.20.2.133 VO 20 IS 2 A1 Richmond, J. A1 Alexander, W. R. M. A1 Potter, J. L. A1 Duthie, J. J. R. YR 1961 UL http://ard.bmj.com/content/20/2/133.abstract AB