| Affiliation: | 1. Division of Pulmonary, Allergy and Critical Care, Perelman School of Medicine, University of Pennsylvania, 3400 Spruce Street, 836 W. Gates Building, Philadelphia, PA 19104, USA;2. Division of Rheumatology, Perelman School of Medicine, University of Pennsylvania, 3737 Market Street, 8th floor, Philadelphia, PA 19104, USA;1. Clinical Epidemiology Program, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA;2. Rheumatology Unit, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA;3. Rheumatology Unit, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA;4. Department of Pathology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA;5. Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA;1. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA;2. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA;3. Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA 02115, USA;1. Interstitial Lung Disease Unit, Royal Brompton Hospital & Harefield NHS Foundation Trust, Sydney Street, London SW3 6NP, UK;2. Interstitial Lung Disease Unit, Guy’s and St Thomas’ Hospital NHS Foundation Trust, Great Maze Pond, London SE1 9RT, UK;3. Rheumatology Department, Guy’s and St Thomas’ Hospital NHS Foundation Trust, Great Maze Pond, London SE1 9RT, UK |
