1. Montefiore Medical Center; Albert Einstein College of Medicine. Bronx; New York USA
2. Ronald Reagan UCLA Medical Center; David Geffen School of Medicine at UCLA, Los Angeles; California USA
3. Texas Cardiac Arrhythmia Institute at St. David's Medical Center; Austin Texas USA
4. Department of Biomedical Engineering; University of Texas; Austin Texas USA
5. Division of Cardiology; Stanford University, Palo Alto; California USA
6. Case Western Reserve University; Cleveland Ohio USA
7. Scripps Clinic; San Diego; California USA. Dell Medical School; Austin Texas USA
8. Department of Cardiology; University of Foggia; Foggia Italy