1. Interstitial Lung Disease Unit; Royal Brompton Hospital, Royal Brompton and Harefield NHS Foundation Trust; London UK
2. Department of Histopathology; Royal Brompton Hospital, Royal Brompton and Harefield NHS Foundation Trust; London UK
3. National Heart and Lung Institute; Imperial College; London UK
4. Department of Radiology; Royal Brompton Hospital, Royal Brompton and Harefield NHS Foundation Trust; London UK