Peter Kokol1, Jernej Završnik2, Bojan Žlahtič1, Helena Blažun Vošner3. 1. University of Maribor, Faculty of Electrical Engineering and Computer Science, Smetanova ulica 17, 2000 Maribor, Slovenia. 2. Dr. Adolf Drolc Healthcare Centre, Ulica talcev 9, 2000 Maribor, Slovenia. 3. University of Maribor, Faculty of Health Sciences, Center for International Cooperation, Žitna ulica 15, 2000 Maribor, Slovenia.