1 | Department of Oncology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Poland |
2 | Department of Surgical Oncology, Ministry of Internal Affairs Hospital with Warmia and Mazury Oncology Centre, Olsztyn, Poland |
3 | Department of Public Health, Hygiene and Epidemiology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Poland |
4 | Department of Oncology and Gynecologic Oncology, Ministry of Internal Affairs Hospital with Warmia and Mazury Oncology Centre, Olsztyn, Poland |