1 Clinical Hospital of Obstetrics and Gynecology "Professor Doctor Panait Sîrbu", Department of Obstetrics and Gynecology 13, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania. Electronic address: calinamaier@yahoo.com.
2 Clinical Hospital of Obstetrics and Gynecology "Professor Doctor Panait Sîrbu", Department of Pathology, Bucharest, Romania.
3 Elias University Emergency Hospital, Department of Obstetrics and Gynecology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.
4 Clinical Hospital of Obstetrics and Gynecology "Professor Doctor Panait Sîrbu", Department of Obstetrics and Gynecology 13, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.