1. Department of Gastroenterology, Institut Mutualiste Montsouris, Paris Descartes University, 42 Bd Jourdan, 75014, Paris, France
2. University of Debreceni, Faculty of Medicine, Nagyerdei krt. 94, 4032, Debrecen, Hungary
3. Debreceni Clinic, Nagyerdei krt. 98, 4032, Debrecen, Hungary
4. Department of Surgery, No.1 Bogomolets National Medical University, Tarasa Shevchenko Blvd, 13, Kyiv, Ukraine
5. University of Nairobi, Faculty of Health Sciences, Department of Surgery, Kenyatta National Hospital, PO Box 19676-00202, Nairobi, Kenya
6. Ryzhikh National Medical Research Centre of Coloproctology, Ulitsa Salyama Adilya, 2, Moscow, 123423, Russia
7. University Medical Center, 215 Hong Bang Street, Ward 11, District 5, Ho Chi Minh, Vietnam
8. International Medical Center Hospital, Hail Street, Al-Ruwais, PO Box 2172 Jeddah 21451, Saudi Arabia
9. Faculty of Health Sciences University Gaston Berger, PO Box 234, Saint-Louis, Senegal
10. Department of Surgery, University of Benin, PMB1111 Ugbowo Lagos Express Road, Benin, Nigeria
11. Servier Medical Affairs, 35 rue de Verdun, 92284 Suresnes Cedex, France
12. The Sixth Affiliated Hospital of Sun Yat-Sen University, 17 Shougouling Rd, Tianhe District, Guangzhou, Guangdong Province, 510507, China