1. Department of Academic Rheumatology, King’s College London , London, UK
2. Department of Rheumatology, King’s College Hospitals NHS Trust , London, UK
3. Interstitial Lung Disease Unit, Royal Brompton and Harefield Clinical Group, Guy’s and St Thomas’ NHS Foundation Trust , London, UK
4. Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London , London, UK