1. Department of Cardiology Institute for Clinical and Experimental Medicine (IKEM) Prague Czech Republic
2. Department of Cardiology, University Hospital Ostrava and Medical School University of Ostrava Ostrava Czech Republic
3. Department of Internal Medicine I Palacky University Hospital Olomouc Czech Republic
4. Department of Cardiovascular Medicine, First Medical School, General University Hospital in Prague Charles University Prague Czech Republic
5. Department of Cardiology Military University Hospital Prague Prague Czech Republic
6. Department of Cardiology Regional Hospital Liberec Liberec Czech Republic