Affiliations

• ¹ Respiratory Department, University Hospital of Liège, Liège, Belgium. Electronic address: j.guiot@chuliege.be.
• ² Center of Excellence for Interstitial Lung Diseases and Sarcoidosis, Department of Pulmonology, Erasmus University Medical Center, Rotterdam, the Netherlands. Electronic address: j.miedema@erasmusmc.nl.
• ³ Rheumatology department, Hospital Garcia de Orta, Almada, Portugal. Electronic address: ana.cristina.cordeiro@hgo.min-saude.pt.
• ⁴ Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands. Electronic address: J.K.de_Vries-Bouwstra@lumc.nl.
• ⁵ 4th Department of Internal Medicine, Hippokration Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
• ⁶ Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark. Electronic address: klausoen@rm.dk.
• ⁷ Department of Respiratory Medicine, University of Patras, Patras, Greece.
• ⁸ Department of Internal Medicine, Ghent University, Ghent, Belgium; Department of Rheumatology, Ghent University Hospital, Ghent, Belgium; Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium. Electronic address: vanessa.smith@ugent.be.