1. Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands;
2. Division of Vascular Surgery, Department of Surgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand;
3. Department of Vascular Surgery, ‘Democritus’ University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece;
4. Division of Cardio-thoracic Surgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand