1. Department of Medicine, Irish Center for Genetic Lung Disease, Royal College of Surgeons in Ireland, Dublin, Ireland;
2. Division of Pulmonary, Critical Care, and Sleep Medicine, SUNY Upstate University Hospital, Syracuse, New York;
3. Channing Division of Network Medicine and Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts;
4. Karl Landsteiner Institute for Lung Research and Pulmonary Oncology and Department of Medicine II with Pneumology, Klinik Ottakring, Vienna, Austria;
5. Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria;
6. Department of Pneumology, University Hospital Zurich, Zurich, Switzerland;
7. Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, Washington;
8. Department of Respiratory Physiology, Beaumont Hospital, Dublin, Ireland; and
9. Division of Biostatistics and Bioinformatics, National Jewish Health, Denver, Colorado