1. Department of Cardiology University of Washington Seattle Washington USA
2. Department of Emergency Medicine University of Washington Seattle Washington USA
3. Department of Radiology Harborview Medical Center Seattle Washington USA
4. Department of Health Services School of Public Health and Community Medicine University of Washington Seattle Washington USA
5. Kaiser Permanente Bellevue Washington USA
6. Internal Medicine Massachusetts General Hospital Boston Washington USA
7. Pulmonary Critical Care and Sleep Medicine Harborview Medical Center Seattle Washington USA