Affiliation: | 1. Department of Pneumology, University Hospitals Leuven, Belgium;2. Department of Internal Medicine, University Hospitals Leuven, Belgium;3. Department of Radiology, University Hospitals Leuven, Belgium;4. Department of Pathology, University Hospitals Leuven, Belgium;5. Department of Rheumatology, University Hospitals Leuven, Belgium;6. Department of Public Health and Primary Care, University Hospitals Leuven, Belgium;7. Department of Thoracic Surgery, University Hospitals Leuven, Belgium;8. Department of Pneumology, Middelheim—ZNA (Ziekenhuis Netwerk Antwerpen), Antwerp, Belgium;9. Interstitial Lung Disease Unit, Royal Brompton Hospital, London, England |