1. Medtronic Inc Minneapolis Minnesota
2. Division of Cardiology University of Illinois Health Chicago Illinois
3. Department of Medicine, Division of Cardiovascular Medicine University of Utah Salt Lake City Utah
4. Department of Biomedical Engineering University of Utah Salt Lake City Utah
5. Nora Eccles Harrison Cardiovascular Research and Training Institute University of Utah Salt Lake City Utah
6. Medtronic CryoCath Pointe‐Claire Quebec Canada