1. National Heart and Lung Institute, Imperial College, London, United Kingdom;
2. Royal Brompton and Harefield Hospitals, Guy’s and St. Thomas’ NHS Foundation Trust, London, United Kingdom;
3. Oxford University Hospitals NHS Trust, Oxford, United Kingdom;
4. Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom; and
5. Hastings Centre for Pulmonary Research and Division of Pulmonary, Critical Care and Sleep Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California