1. Department of Infection Control, Regional Hospital Stargard, 73-110 Stargard, Poland
2. Sanprobi Sp. Z o.o. Sp.k., 70-204 Szczecin, Poland
3. Department of Cardiac Surgery, Pomeranian Medical University, 70-111 Szczecin, Poland
4. Department of Anesthesiology, Intensive Care and Acute Intoxication, Pomeranian Medical University, 70-111 Szczecin, Poland