RT Journal Article SR Electronic T1 Dose escalation of leflunomide (LEF) to 40 mg once daily in patients with rheumatoid arthritis and insufficient response to standard dose LEF JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 746 OP 747 DO 10.1136/ard.2003.014217 VO 63 IS 6 A1 Fiehn, C A1 Rochel, E A1 Ho, A D A1 Max, R YR 2004 UL http://ard.bmj.com/content/63/6/746.abstract AB