Dressing
Fudan University
Fudan University
Centre Hospitalier Universitaire, Amiens
Nanchong Central Hospital
Seoul St. Mary's Hospital
Hospital de Granollers
Third Affiliated Hospital, Sun Yat-Sen University
Royal Surrey County Hospital NHS Foundation Trust
Yonsei University
Hospital Donostia
TC Erciyes University
National and Kapodistrian University of Athens
Johns Hopkins University
State Scientific Centre of Coloproctology, Russian Federation
West China Hospital
University of Calgary
Hospital de Clinicas de Porto Alegre