1. Department of General Surgery, Cittiglio-Angera Hospital, ASST Settelaghi, 21033 Varese, Italy
2. General and Upper GI Surgery Division, Department of Surgery, University of Verona, 37134 Verona, Italy
3. Department of Advanced Biomedical Sciences, Federico II University Hospital, 80131 Naples, Italy
4. Department of Medical Surgical Sciences and Neurosciences, Section of General Surgery and Surgical Oncology, Istituto Toscano Tumori (ITT), University Hospital of Siena, University of Siena, 53100 Siena, Italy
5. President of Association “Vivere Senza Stomaco”
6. Department of General Surgery, Gallarate Hospital, ASST Valle Olona, 21013 Gallarate, Italy