The Perioperative Italian Society: Andrea Muratore MD, General Surgery, Pinerolo Hospital, Pinerolo, Italy; Luigi Beretta, Anesthesiology, IRCCS San Raffaele University Hospital, Milano, Italy; Marco Azzola, General Surgery,Cantù Hospital, Cantù, Italy; Danilo Radrizzani, Anesthesiology ASST Ovest Milano, Legnano Hospital, Legnano, Italy; Felice Borghi, Candiolo Cancer Institute, FPO-IRCCS, Torino, Candiolo, Italy; Giancarlo Missana, General Surgery, Policlinico Città di Udine, Udine, Italy; Marco Scatizzi, General Surgery,  Ospedale Santa Maria Annunziata, AUSL Toscana Centro, Firenze, Italy; Michele Crespi, General Surgery, ASST FBF-Sacco, Ospedale Luigi Sacco, Milano, Italy; Carlo Bima, General Surgery, Cottolengo Hospital, Torino, Italy; Hedayat Bouzari, General Surgery, Mauriziano Hospital, Torino, Italy; Antonio Valenti, General Surgery, ASST SS Paolo e Carlo, San Paolo Hospital, Milano, Italy; Andrea Pisani Ceretti, General Surgery, ASST Nord Milano, ospedale Bassini, Cinisello Balsamo, Italy; Roberto Polastri, General Surgery, Biella Hospital, Biella, Italy; Roberta Longhin, General Surgery, Galliera Hospital, Genova, Italy; Angela Maurizi, General Surgery, Jesi Hospital, Jesi, Italy; Diletta Cassini, General Surgery, ASST Nord Milano, Sesto San Giovanni,  Italy; Francesco Di Marzo, General Surgery, USL Toscana Nord-ovest, Versilia Hospital; Sergio Fumagalli, General Surgery, Villa Aprica Hospital, Como, Italy; Simone Muratori, General Surgery, Carpi Hospital, Carpi, Italy; Massimiliano Casati, Policlinico di Monza, Monza,  Italy; Ferdinando Ficari, General Surgery, Careggi Hospital—University of Firenze, Firenze, Italy