1. Department of Obstetrics and Gynecology, ‘I. Cantacuzino’ Clinical Hospital, 030167 Bucharest, Romania
2. Department of Surgery, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
3. Department of Obstetrics and Gynecology, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
4. Department of Cardiovascular Surgery, ‘Prof. Dr. C. C. Iliescu’ Emergency Institute for Cardiovascular Diseases, 022322 Bucharest, Romania
5. Department of Surgery, Ramnicu Sarat County Hospital, 125300 Ramnicu Sarat, Romania
6. Department of Thoracic Surgery, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
7. Department of Surgery, ‘Ponderas’ Academic Hospital, 021188 Bucharest, Romania