1. 1 Students Scientific Society Anatomia-Klinika-Nauka, Department of Human Morphology and Embryology, Division of Anatomy , Wroclaw Medical University , Wroclaw , Poland
2. 2 Medicard AS, Halden , Norway
3. 3 Department of Human Morphology and Embryology, Division of Anatomy , Wroclaw Medical University , Wroclaw , Poland