1. Department of Histology and Embryology, Faculty of Medicine, Charles University, Plzen, Czech Republic
2. Department of Obstetrics and Gynecology, University Hospital, Faculty of Medicine, Charles University, Plzen, Czech Republic
3. Biomedical Centre, Faculty of Medicine in Plzen, Charles University, Plzen, Czech Republic
4. Institute of Sexology First Faculty of Medicine, Charles University, Prague, Czech Republic
5. Department of Psychiatry, Faculty of Medicine in Pilsen, Charles University, Prague, Czech Republic
6. Department of Pathology, University of Louisville, Louisville, KY, USA