1. Lotus Clinical Research, LLC, Pasadena, CA, USA;
2. Visions Clinical Research, Wellington, FL, USA;
3. Clinic of Obstetrics and Gynecology, Clinical Center of Serbia, Belgrade, Serbia and Medical Faculty, University of Belgrade, Belgrade, Serbia;
4. Department of Obstetrics and Gynecology, Clinical Centar of Vojvodina, Novi Sad, Serbia;
5. Department of Urology, Semmelweis University, Budapest, Hungary;
6. Department of Gynaecology and Obstetrics, Kenezy Hospital, Debrecen, Hungary;
7. Wake Forest University Baptist Medical Center, Winston-Salem, NC, USA;
8. Urologic Surgery, Washington University School of Medicine, St Louis, MO, USA;
9. Grifols Bioscience Research Group, Barcelona, Spain;