1. Faculty of Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
2. Laboratory of Cancer Epidemiology, National Cancer Institute, Vilnius, Lithuania
3. Department of Public Health, Institute of Health Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
4. Department of Pathology, Forensic Medicine and Pharmacology, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
5. Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
6. Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
7. Faculty of Health Care, University of Applied Sciences, Vilnius, Lithuania