1. Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania
2. Department of Infectious Diseases, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania
3. Department of Obstetrics and Gynecology, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
4. Department of Obstetrics and Gynecology, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania