1. Department of Cardiac Physiology Institute of Physiology, Komi Science Center, Ural Branch, Russian Academy of Sciences Syktyvkar Russia
2. Department of Biomedical Technology, Faculty of Biomedical Engineering Czech Technical University in Prague Kladno Czech Republic
3. Department of Human and Animal Physiology, Biological Faculty Lomonosov Moscow State University Moscow Russia
4. Department of Radioecology Institute of Biology, Komi Scientific Centre, Ural Branch, Russian Academy of Sciences Syktyvkar Russia