1. Department of Surgical Nursing, Medical University of Gdansk, Dębinki 7, 80-211 Gdansk, Poland
2. Thoracic Surgery Department, Medical University of Gdansk, Smoluchowskiego 17, 80-211 Gdansk, Poland
3. Department of Anaesthesiology Nursing and Intensive Care, Medical University of Gdansk, Dębinki 7, 80-211 Gdansk, Poland