1 Department of Infectious Diseases, Second University Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Dragana Area, Alexandroupolis 681 00, Greece.
2 Department of Hematology, University Hospital of Alexandroupolis, Democritus University of Thrace, Dragana Area, Alexandroupolis 681 00, Greece.
3 Department of Infectious Diseases, Second University Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace , Dragana Area, Alexandroupolis 681 00, Greece.
4 Department of Hematology, University Hospital of Alexandroupolis , Democritus University of Thrace, Dragana Area, Alexandroupolis 681 00, Greece.