RT Journal Article SR Electronic T1 Correspondence on ‘Safety and efficacy of faecal microbiota transplantation for active peripheral psoriatic arthritis: an exploratory randomised placebo-controlled trial’ JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP annrheumdis-2021-220871 DO 10.1136/annrheumdis-2021-220871 A1 Dennis G McGonagle A1 Charlie Bridgewood A1 Helena Marzo-Ortega YR 2021 UL http://ard.bmj.com/content/early/2021/06/21/annrheumdis-2021-220871.abstract AB