[1] Carol Davila Univ Med & Pharm, Dept Obstet & Gynecol, Panait Sirbu Clin Obstet & Gynecol Hosp, Bucharest, Romania
[2] Carol Davila Univ Med & Pharm, Bucharest Univ Emergency Hosp, Bucharest, Romania
[3] Carol Davila Univ Med & Pharm, Dept Obstet & Gynecol, Nicolae Malaxa Clin Hosp, Bucharest, Romania
[4] Carol Davila Univ Med & Pharm, Bucharest, Romania