1. Department of Human Anatomy , Medical University of Lublin , Poland
2. The Institute of Sociological Sciences, Faculty of Social Sciences , The John Paul II Catholic University of Lublin , Poland
3. Department of Human Anatomy , Medical University of Bialystok , Poland
4. Department of Anatomy and Neurobiology , Medical University of Gdansk , Poland
5. Department of Normal Anatomy , Pomeranian Medical University in Szczecin , Poland
6. Department of Anatomy, Medical College , Jagiellonian University , Krakow , Poland
7. Department of Normal Anatomy, The Ludwik Rydygier Collegium Medicum in Bydgoszcz , the Nicolaus Copernicus University in Torun , Poland