1. ‘Pietro Valdoni’ Department of Surgery, Faculty of Medicine and Dentistry, Policlinico ‘Umberto I’ ‘Sapienza’ University of Rome Rome Italy
2. Surgical Coloproctology, ‘Val Vibrata’ Hospital L'Aquila University TE Italy
3. ITER Center for Balance and Rehabilitation Research (ICBRR) Rome Italy
4. Eurac Research, Institute of Mountain Emergency Medicine Bolzano Italy
5. Unit of General Surgery and Surgical Oncology, Department of Medicine, Surgery and Neurosciences University of Siena Siena Italy