University of Milan, Milano, Italy
Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico University of Milan, Milan, Italy
Istituto Europeo di Oncologia, IRCCS, Milan, Italy
IRCCS Sacro Cuore Don Calabria, Negrar di Valpolicella, Italy
Centro di Riferimento Oncologico (CRO) Aviano IRCCS, Aviano, Italy
Ospedale Papa Giovanni XXIII, Bergamo, Italy
University of Brescia, Brescia, Italy
Fondazione Poliambulanza – Istituto Ospedaliero, Brescia, Italy
Fondazione Policlinico Universitario A. Gemelli-IRCCS, Roma, Italy
Università Cattolica S. Cuore, Rome, Italy
Ospedale Valduce, Como, Italy
Ministry of Health of the Russian Federation, Irkutsk, Russian Federation
Im Haus der Gesundheit, Ludwigshafen am Rhein, Germany
Klinikum der Stadt Ludwigshafen, Ludwigshafen, Germany
Yaroslavl Clinical Oncology Hospital, Yaroslavl, Russian Federation
Asst Rhodense, Presidi di Rho e Garbagnate, Garbagnate, Italy
Medical Center of Diagnostics and Prevention, Yaroslavl, Russian Federation
NTC, Milan, Italy
Edouard Herriot University Hospital, Lyon, France
Istituto Auxologico Italiano, Milano, Italy
Santa Chiara Hospital, Trento, Italy
IRCCS Ospedale San Raffaele, Milano, Italy
Centre Hospitalier Universitaire de Montpellier, Montpellier, France
State Scientific Center of Coloproctology named after A. N. Ryzhykh, Moscow, Russian Federation