1. Department of Cardiovascular Medicine; Heart and Vascular Institute, Cleveland Clinic; Cleveland OH USA
2. Department of Cardiology, Ziekenhuis Oost-Limburg; Genk, Belgium and Hasselt University; Diepenbeek Belgium
3. Department of Mathematics; Cleveland State University; Cleveland OH USA
4. Department for Cellular and Molecular Medicine; Lerner Research Institute; Cleveland Clinic, 9500 Euclid Avenue, Desk J3-4 Cleveland OH USA