1. Department of Anaesthesiology and Intensive Therapy, Medical University of Bialystok, Kilinskiego Street 1, 15-276 Bialystok, Poland
2. Faculty of Biocybernetics and Biomedical Engineering, Bialystok University of Technology, 15-276 Bialystok, Poland
3. Faculty of Mechanical Engineering, Bialystok University of Technology, 15-351 Bialystok, Poland
4. Faculty of Electrical Engineering, Bialystok University of Technology, 15-351 Bialystok, Poland