1. IInd Surgery Clinic, Timisoara Emergency County Hospital, 300723 Timisoara, Romania
2. X Department of General Surgery, ”Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
3. IInd Obstetric and Gynecology Clinic “Dominic Stanca”, 400124 Cluj-Napoca, Romania
4. 2nd Department of Obstetric & Ginecology, ”Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babeș Street Number 8, 400347 Cluj-Napoca, Romania
5. Ist Clinic of Oncological Surgery, Oncological Institute “Prof. Dr. I. Chiricuta”, 400015 Cluj-Napoca, Romania
6. Ist Clinic of General Surgery, Arad County Emergency Clinical Hospital, 310158 Arad, Romania
7. Department of General Surgery, Faculty of Medicine, “Vasile Goldiș” Western University of Arad, 310025 Arad, Romania