1. Department of Internal Medicine, University General Hospital of Patras, 26504 Patras, Achaia, Greece
2. Department of Medical School, University of Patras, 26504 Greece, Achaia, Greece
3. Department of Surgery, “Saint Andrew” General Hospital of Patras, 26334 Patras, Achaia, Greece
4. Department of Pediatrics, University General Hospital of Patras, 26504 Patras, Achaia, Greece
5. Department of Infectious Diseases, University General Hospital of Patras, 26504 Patras, Achaia, Greece