1. First Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania
2. Surgery Department, Regional Institute of Oncology Iași, 700483 Iasi, Romania
3. Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania
4. Second Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania