1. Centre of Neurology, Clinic of Neurology and Neurosurgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
2. Centre of Cardiology and Angiology, Clinic of Cardiac and Vascular Diseases, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
3. Centre of Cardiac Surgery, Clinic of Cardiac and Vascular Diseases, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
4. Centre of Informatics and Development, Department of Information Systems, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
5. Department of Mathematical Statistics, Faculty of Mathematics and Informatics, Vilnius University, Vilnius, Lithuania