1. Department of Obstetrics and Gynecology, ‘Carol Davila’ University of Medicine and Pharmacy Doctoral School, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania
2. Department of Obstetrics and Gynecology, ‘Carol Davila’ University of Medicine and Pharmacy, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania
3. Department of Gastroenterology, Central Military Emergency University Hospital, 010825 Bucharest, Romania
4. Department of Public Health and Management, Faculty of Medicine,‘Carol Davila’ University of Medicine and Pharmacy, 050463 Bucharest
5. Department of Obstetrics and Gynecology, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
6. Department of Obstetrics and Gynecology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
7. Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania