1. Anesthesiology and Intensive Care, University Hospital no. 1 Unii Lubelskiej, 71-252 Szczecin, Poland
2. Department of Biochemical Sciences, Pomeranian Medical University, 71-460 Szczecin, Poland
3. Department of Specialist Nursery, Pomeranian Medical University, Zolnierska 48, 71-210 Szczecin, Poland