1. First Department of Internal Medicine, AHEPA University Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
2. Basic and Translational Research Unit (BTRU) of Special Unit for Biomedical Research and Education (BRESU), Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
3. First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100 Alexandroupolis, Greece
4. Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
5. University Department of Internal Medicine, General and Oncology Hospital of Kifisia Agioi Anargyroi, 14564 Athens, Greece