1. Section of Regenerative Medicine and Cancer Research, Natural Sciences Club, Faculty of Biology, Adam Mickiewicz University, Poznań, 61-614 Poznan, Poland
2. Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland
3. Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland
4. Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
5. Gene Therapy Laboratory, Department of Cancer Diagnostics and Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
6. Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
7. Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
8. Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA
9. Physiology Graduate Faculty, North Carolina State University, Raleigh, NC 27695, USA
10. Department of Human Morphology and Embryology, Division of Histology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland
11. Division of Anatomy and Histology, University of Zielona Góra, 65-046 Zielona Góra, Poland
12. Department of Human Morphology and Embryology, Division of Anatomy, Wroclaw Medical University, 50-367 Wroclaw, Poland
13. Department of Obstetrics and Gynaecology, University Hospital and Masaryk University, 62500 Brno, Czech Republic