1. 1st Department of Ophthalmology, Gennimatas General Hospital, National and Kapodistrian University of Athens, School of Medicine, Greece
2. 1st Department of Cardiology, Hippokration General Hospital, School of Medicine, National and Kapodistrian University of Athens, Greece
3. Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School and Harvard-MIT Biomedical Engineering Center, Massachusetts Institute of Technology, Boston, USA
4. 1st Department of Propaedeutic and Internal Medicine, Division of Diabetes, Laiko University Hospital, National and Kapodistrian University of Athens, School of Medicine, Greece