1. Department of Anatomy, Poznan University of Medical Sciences , Poznan , Poland
2. Division of Reproduction, Department of Obstetrics, Gynecology and Gynecologic Oncology, Poznan University of Medical Sciences , Poznan , Poland
3. Department of Histology and Embryology, Poznan University of Medical Sciences , Poznan , Poland
4. Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences , Poznan , Poland
5. The School of Medicine, Medical Sciences and Nutrition, University of Aberdeen , Aberdeen UK
6. Department of Obstetrics and Gynecology, University Hospital and Masaryk University , Brno , Czech Republic
7. Physiology Graduate Program, North Carolina State University , Raleigh , North Carolina