Boer Aleid C, Huizinga Tom W J, van der Helm-van Mil Annette H M
Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
Department of Rheumatology, Erasmus Medical Center, Rotterdam, The Netherlands.
Ann Rheum Dis. 2019 Jan;78(1):e1. doi: 10.1136/annrheumdis-2017-212867. Epub 2018 Jan 8.