1. Department of Human Anatomy, Medical University of Silesia, 18 Medyków Street, Bulding C-1, 40-752 Katowice, Poland
2. Department of Radiology and Nuclear Medicine, Medical University of Silesia, 12 Medyków Street, 40-752 Katowice, Poland
3. E.N.T. Department, Medical University of Silesia, 20-24 Francuska Street, 40-027 Katowice, Poland