1. Department of Anesthesiology and Intensive Care Unit, AHEPA University General Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
2. Emergency Department, AHEPA University General Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
3. First Propaedeutic Internal Medicine Department, AHEPA University General Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
4. 1st Cardiology Department, AHEPA University General Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
5. CITY College, University of York Europe Campus, 54626 Thessaloniki, Greece
6. Department of Medicine, University General Hospital of Patras, 26504 Rio, Greece
7. First Propaedeutic Department of Surgery, AHEPA University General Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece