1. Baptist Health Lexington; Lexington KY USA
2. Saint Thomas Research Institute; Nashville TN USA
3. Deborah Heart and Lung; Browns Mills NJ USA
4. NYU Langone Medical Center; New York NY USA
5. Lahey Hospital and Medical Center - Cardiology; Burlington MA USA
6. The Heart Institute; St. Petersburg FL USA
7. Lancaster Heart Foundation; Lancaster PA USA
8. Abbott; Plano TX USA
9. Aurora Cardiovascular Services; Milwaukee WI USA