1. 1 Mayo Clinic Alix School of Medicine, Scottsdale, Arizona
2. 2 Department of Cardiovascular Diseases, Mayo Clinic Arizona, Scottsdale, Arizona
3. 3 Department of Radiology, Mayo Clinic Arizona, Scottsdale, Arizona
4. 4 Department of Cardiovascular Surgery, Mayo Clinic Arizona, Scottsdale, Arizona
5. 5 Department of Laboratory Medicine and Pathology, Mayo Clinic Arizona, Scottsdale, Arizona