1. Department of Surgical Oncology, Medical University of Gdansk
2. General, Oncological, Gastroenterological and Transplant Surgery Clinical Department, University Hospital of the Jagiellonian University
3. Department of Surgical Oncology, Oncology Center in Bydgoszcz
4. Department of General and Colorectal Surgery, Medical University of Lodz
5. National Consultant for General Surgery
6. Department of Surgical Oncology, Medical University of Lodz
7. Department of General, Oncological and Vascular Surgery, Fifth Military Hospital in Kraków
8. Department of General and Gastrointestinal Surgery and Surgical Oncology, Nicolaus Copernicus University in Torun
9. Surgical Oncology Department, Lower Silesian Oncology Center in Wroclaw
10. Surgical Unit, Department of Gastrointestinal Oncology, Maria Sklodowska-Curie National Research Institute of Oncology
11. Department of Surgical Oncology, Medical University of Lublin
12. Department of Oncology and Radiotherapy, Maria Sklodowska-Curie National Research Institute of Oncology
13. Department of Gynecologic Oncology, Medical University of Gdansk
14. Department of Pathology, Medical University of Gdansk
15. Department of Surgery and Pediatric Urology, Medical University of Gdansk
16. Deparment of Radiology, Medical University of Gdansk
17. Department of Anesthesiology and Intensive Care Unit, Medical University of Gdansk