1. Northeast Internal Medicine Associates LaGrange IN USA
2. Department of Medicine Albert Einstein College of Medicine/Jacobi Medical Center Bronx NY USA
3. Department of Neurosurgery King's College Hospital NHS Foundation Trust London UK
4. 2nd Department of Urology National and Kapodistrian University of Athens, Sismanogleion Hospital Athens Greece
5. Department of Neurology General Hospital of Elefsina Thriasio Attiki Greece
6. Division of Vascular and Endovascular Surgery, Department of Surgery Stony Brook University Hospital Stony Brook NY USA
7. Department of Cardiology University General Hospital of Larissa, Faculty of Medicine, School of Health Sciences, University of Thessaly Larisa Greece
8. Division of Cardiology, AHEPA University Hospital Aristotle University of Thessaloniki Thessaloniki Greece
9. Department of Mathematics University of Ioannina Ioannina Greece
10. Department of Internal Medicine University of Thessaly Larissa Greece
11. Liverpool Centre for Cardiovascular Science University of Liverpool and Liverpool Heart & Chest Hospital Liverpool UK
12. Section of Cardiovascular Medicine Yale University School of Medicine, Yale New Haven Hospital New Haven CT USA