1. Department of Obstetrics and Gynecology Clinical Hospital of Obstetrics and Gynecology “Professor Doctor Panait Sîrbu” Giulesti Street No. 5, District 6 050786 Bucharest Romania
2. “Carol Davila” University of Medicine and Pharmacy Eroii Sanitari Boulevard No. 8, District 5 050474 Bucharest Romania
3. Department of Obstetrics and Gynecology Elias Emergency University Hospital Marasti Boulevard No. 17, District 1 011461 Bucharest Romania
4. Department of Neonatology Clinical Hospital of Obstetrics and Gynecology “Professor Doctor Panait Sîrbu” Giulesti Street No. 5, District 6 050786 Bucharest Romania
5. Department of Pathology, Clinical Hospital of Obstetrics and Gynecology “Professor Doctor Panait Sîrbu” Giulesti Street No. 5, District 6 050786 Bucharest Romania