1 Jagiellonian University, Medical College, Department of Obstetrics and Perinatology Cracow, Poland. [email protected].
2 Chair and Department of Gynecology and Obstetrics, Faculty of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland.
3 2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, Poland.
4 Department of Perinatology, Obstetrics and Gynecology, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland.
5 2nd Chair and Department of Gynecology and Obstetrics, Medical University of Lodz, Poland.
6 Jagiellonian University, Medical College, Department of Obstetrics and Perinatology Cracow, Poland.
7 Department of Gynecology, Reproductive, Fetal Therapy and Infertility Diagnosis and Treatment, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland.
8 Department of Obstetrics and Gynecology, Independent Public Clinical Hospital No 2, Medical University in Szczecin, Poland.
9 Department of Obstetrics and Perinatology, Medical University of Lublin, Poland.
10 Department of Reproduction, Chair of Perinatal Medicine, Poznan University of Medical Sciences, Poland.
11 National Medical Institute of the Ministry of the Interior and Administration in Warsaw, Poland.
12 Medical Faculty, Lazarski University, Warsaw, Poland.
13 Department of Gynecology, Obstetrics and Neonatology, Medical University of Gdansk, Poland.
14 2nd Department of Gynecology and Obstetrics, Wroclaw Medical University, Poland.
15 1st Department of the Gynecology and Obstetrics, Medical University of Lodz, Poland.