1. Division of Surgery and Interventional Science, Faculty of Medical Sciences, UCL, London, UK and Department of Surgery, University of Thessaly, Biopolis, Larissa, Greece
2. Department of Pharmacology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa, Greece
3. Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa, Greece
4. The Warren Alpert Medical School of Brown University, Providence, RI, United States
5. Geisinger Medical Center, Danville, PA, United States
6. Department of Surgery, University Hospital of Larissa, Larissa, Greece