1. 3rd Department of Internal Medicine, Semmelweis University, Budapest 1125, Hungary
2. 2nd Department of Surgery, Semmelweis University, Budapest 1125, Hungary
3. National Institute of Oncology, Budapest 1122, Hungary
4. János Balassa Hospital, County Hospital Tolna, Szekszárd 7100, Hungary
5. Department of Oncoradiology, Bács-Kiskun County Hospital, Kecskemét H6000, Hungary