National University Hospital, Singapore, Singapore
Baylor college of medicine, Houston, Texas, United States
Northeast Acute Care Surgery, Concord, North Carolina, United States
Marmara University, Istanbul, Turkey
Ankara City Hospital, Ankara, Turkey
Sapienza University of Rome, Rome, Italy
Tepecik Training and Research Hospital, İzmir, Konak, Turkey
Department of Surgery, University of Hong Kong, Hong Kong, Hong Kong