1. Department of General Surgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
2. General Surgery and Surgical Oncology Department I, Bucharest Institute of Oncology “Prof. Dr. Alexandru Trestioreanu”, 022328 Bucharest, Romania
3. Zetta Hospital, 020311 Bucharest, Romania
4. Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
5. Oncology Department I, Bucharest Institute of Oncology “Prof. Dr. Alexandru Trestioreanu”, 022328 Bucharest, Romania
6. Surgical Clinic I, Clinical Hospital Dr. I. Cantacuzino, 030167 Bucharest, Romania
7. Department of Plastic Surgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
8. Department of Plastic Surgery, Emergency University Hospital, 050098 Bucharest, Romania