1. Department of Surgery, University Hospital Center “Mother Teresa,” Tirana, Albania.
2. Institute of Public Health, Tirana, Albania.
3. Oncology Service, University Hospital Center “Mother Teresa,” Tirana, Albania.
4. Department of Public Health, Faculty of Medicine, Tirana University, Tirana, Albania.
5. Department of International Health, School for Public Health and Primary Care (CAPHRI), Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.