1. Prairie Heart Institute at St. John's Hospital; Springfield Illinois
2. Vanderbilt University Medical Center; Nashville Tennessee
3. Riverside Hospital; Columbus Ohio
4. Cleveland Clinic; Cleveland Ohio
5. Kaiser Permanente Hospital; Oahu Hawaii
6. Albany Hospital; Albany New York
7. Stanford University; Palo Alto California
8. NAMSA; Minneapolis Minnesota
9. Massachuessttes General Hospital; Boston Massachuessttes