RT Journal Article SR Electronic T1 Safety and efficacy of TNFα blockade in relapsing vasculitis JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 559 OP 559 DO 10.1136/ard.61.6.559 VO 61 IS 6 A1 A D Booth A1 H J Jefferson A1 W Ayliffe A1 P A Andrews A1 D R Jayne YR 2002 UL http://ard.bmj.com/content/61/6/559.abstract AB