1. Institute for Health Metrics and Evaluation University of Washington Seattle Washington USA
2. Translational and Clinical Research Institute, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne UK
3. Pulmonary Vascular Research Institute UK
4. Division of Pulmonary, Critical Care, and Sleep Medicine University of Washington Seattle Washington USA
5. Division of Cardiology Northwestern Memorial Hospital Chicago Illinois USA
6. Aswan Heart Centre Aswan Egypt
7. National Heart & Lung Institute Imperial College London London UK
8. Harefield Heart Science Centre London UK
9. Division of Cardiology, Department of Medicine University of Washington Seattle Washington USA