1 Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece.
2 Department of Radiology, University Hospital of Alexandroupolis, Alexandroupolis, Greece.
3 First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Dragana, 68100, Alexandroupolis, Greece. cpapagor@med.duth.gr.