1. Department of Teaching Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 61-861 Poznan, Poland
2. Department of Anesthesiology, Intensive Therapy and Pain Treatment, Poznan University of Medical Sciences, 60-806 Poznan, Poland
3. Department of Clinical Psychology, Poznan University of Medical Sciences, 60-806 Poznan, Poland
4. Department of Pediatric Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 60-806 Poznan, Poland