1. Biomedical Engineering Institute, Kaunas University of Technology, Kaunas, Lithuania
2. Biomedical Engineering Institute, Kaunas University of Technology, Lithuania
3. BSICoS Group, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Spain
4. Biomedical Engineering Institute and Department of Electronics Engineering, Kaunas University of Technology, Lithuania
5. Department of Biomedical Engineering, Lund University, Sweden