1. Department of Medicine, School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
2. William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
3. Cardiovascular Medicine Division and
4. Cardiovascular Medicine Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
5. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital–Harvard Medical School, Harvard University, Boston, Massachusetts
6. National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
7. Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom