RT Journal Article SR Electronic T1 Proceedings: Lymphocyte subpopulations in rheumatoid arthritis and systemic lupus erythematosus. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 407 OP 408 DO 10.1136/ard.33.4.407 VO 33 IS 4 A1 Popovic, M A1 Munro, J A1 Davies, P A1 Holt, P J YR 1974 UL http://ard.bmj.com/content/33/4/407.abstract AB