1. Division of Cardiovascular Diseases; University of Missouri; Kansas City Missouri
2. Department of Anesthesiology and Perioperative Medicine; Ronald Reagan Medical Center; University of California at Los Angeles; Los Angeles California
3. Division of Biomedical Statistics and Informatics; Mayo Clinic; Rochester Minnesota
4. Department of Orthopedic Surgery; Mayo Clinic; Rochester Minnesota
5. Division of Hospital Internal Medicine; Mayo Clinic; Rochester Minnesota
6. Division of Cardiology; Department of Medicine; Mayo Clinic; Rochester Minnesota
7. Division of Health Care Policy and Research; Department of Health Sciences Research; Mayo Clinic; Rochester Minnesota