1. First Cardiology Clinic, School of Medicine, National and Kapodistrian University of Athens, Greece
2. 1st Propedeutic Department of Internal Medicine, AHEPA University Hospital, Aristotle University of Thessaloniki, Greece, Greece
3. First Department of Internal Medicine, AHEPA University Hospital, Thessaloniki, Greece, Greece
4. Cardiology Department, Georgetown University and Veterans Affairs Medical Center, Washington, District of Columbia, United States
5. Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece, Greece
6. Second Department of Internal Medicine, HIV Unit, Hippokration General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece, Greece
7. Department of Internal Medicine, Hippokration General Hospital, Athens, Greece, Greece
8. Department of Neurology, Liverpool Hospital and South Western Sydney Local Health District, Sydney, NSW, Australia, Australia
9. Second Department of Neurology, Attikon Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece, Greece
10. Department of Hypertension, Medical University of Lodz (MUL), Lodz, Poland, Poland