1. „Carol Davila” University of Medicine and Pharmacy , Faculty of Medicine
2. Department of General Surgery , Hospital „Dr. I. Cantacuzino” , Bucharest , Romania
3. Department of Nephrology and Dialysis , „St. Ioan” Emergency Clinical Hospital , Bucharest , Romania
4. Nephrology Department , University Emergency Hospital , Bucharest , Romania
5. Ovidius Clinical Hospital , Constanta , Romania
6. Department of Anesthesiology and Intensive Care I , Fundeni Clinial Institute , Bucharest , Romania
7. Emergency Clinical Hospital „Prof. Dr. Agrippa Ionescu” , Bucharest , Romania
8. Oncological Institute Prof. Dr. Al.Trestioreanu , Bucharest , Romania
9. Department of General Surgery - Bucharest Emergency Clinical Hospital , Romania