1. Department PhD, IOSUD, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
2. Department for Gynecology, Obstetrics and Reproductive Medicine, Saarland University Hospital, Kirrberger Straße 100, Building 9, 66421 Homburg, Germany
3. Department of Obstetrics and Gynecology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
4. “Bucur” Maternity, Saint John Hospital, 012361 Bucharest, Romania
5. Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania
6. Filantropia Clinical Hospital Bucharest, 011132 Bucharest, Romania