1. University of Washington Department of Medicine Seattle Washington USA
2. Virginia Commonwealth University Richmond Virginia USA
3. University of Washington Division of Cardiology Seattle Washington USA
4. University of Washington Department of Emergency Medicine Seattle Washington USA
5. University of Washington Division of Pulmonary, Critical Care and Sleep Medicine Seattle Washington USA
6. University of Washington Department of Anesthesiology and Pain Medicine Seattle Washington USA
7. University of Virginia Division of Cardiovascular Medicine Charlottesville Virginia USA