1. Faculty of Medical Sciences in Zabrze Student Scientific Society at the Department of Anaesthesiology, Intensive Care and Emergency Medicine Medical University of Silesia Katowice Poland
2. Faculty of Medical Sciences in Zabrze, Chair and Department of Thoracic Surgery Medical University of Silesia Katowice Poland
3. Faculty of Medical Sciences in Zabrze Department of Anaesthesiology, Intensive Care and Emergency Medicine Medical University of Silesia Katowice Poland