RT Journal Article SR Electronic T1 Response to: Cryoglobulinemic vasculitis in the era of direct-acting antiviral drug JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e6 DO 10.1136/annrheumdis-2016-210695 VO 76 IS 3 A1 David Saadoun A1 Patrice Cacoub YR 2017 UL http://ard.bmj.com/content/76/3/e6.abstract AB