1. Kaiser Foundation Hospital, Hawaii Permanente Medical Group, Honolulu
2. University of California, Davis, Sacramento
3. RoMed Klinikum, Rosenheim, Germany
4. Medical University of Graz, Austria
5. Universitäts-Herzzentrum Freiburg–Bad Krozingen, Germany
6. University Hospital Leipzig, Germany
7. Wellmont Holston Valley Medical Center, Kingsport, TN
8. GVM Care and Research, Maria Cecilia Hospital, Cotignola, Italy
9. UNC-REX Health Care, Raleigh, NC
10. Newton-Wellesley Hospital, Newton, MA
11. Medtronic, Santa Rosa, CA
12. Mount Sinai Medical Center, New York, NY