1. Indonesian Society of Digestive Surgeons Jakarta Indonesia
2. Department of Surgery Fatmawati Central General Hospital Jakarta Indonesia
3. Department of Surgery M. Soewandhi District Hospital Surabaya Indonesia
4. Department of Surgery Ulin District Hospital, Faculty of Medicine, Lambung Mangkurat University Banjarmasin Indonesia
5. Department of Surgery Dr. Sardjito Central General Hospital, Faculty of Medicine, Gajah Mada University Yogyakarta Indonesia
6. Department of Surgery M. Djamil Central General Hospital, Faculty of Medicine, Andalas University Padang Indonesia
7. Department of Surgery Sanglah Central General Hospital, Faculty of Medicine, Udayana University Denpasar Indonesia
8. Department of Surgery Syaiful Anwar District Hospital. Faculty of Medicine, Brawijaya University Malang Indonesia
9. Department of Surgery Dr. Karyadi Central General Hospital, Faculty of Medicine, Diponegoro University Semarang Indonesia
10. Department of Surgery Dr. Soetomo Central General Hospital, Faculty of Medicine, Airlangga University Surabaya Indonesia
11. Department of Surgery Persahabatan Central General Hospital Jakarta Indonesia
12. Department of Surgery, Dr. Wahidin Sudirohusodo Central General Hospital Faculty of Medicine, Hasanudin University Makasar Indonesia