1. Medical Faculty, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
2. Cardiology Department, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
3. Cardiology Department, Hospital of Lithuanian University of Health Sciences, 45130 Kaunas, Lithuania
4. Kaunas Region Society of Cardiology, 50009 Kaunas, Lithuania
5. Institute of Cardiology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania