1. Department of Oncology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
2. Department of Medical Oncology II, Prof. Dr. Al. Trestioreanu Institute of Oncology, 022328 Bucharest, Romania
3. Department of Radiotherapy II, Prof. Dr. Al. Trestioreanu Institute of Oncology, 022328 Bucharest, Romania