Ez-Zaitouni Zineb, Landewé Robert B M, van der Heijde Désirée, van Gaalen Floris A
Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
Department of Rheumatology, Amsterdam Rheumatology & Immunology Center (ARC), Amsterdam, The Netherlands.
Ann Rheum Dis. 2018 Jun;77(6):e34. doi: 10.1136/annrheumdis-2017-212175. Epub 2017 Aug 22.