1. Medical Research Agency Warsaw Poland
2. University of Cardinal Wyszynski in Warsaw Warsaw Poland
3. Department of Heart Diseases Wrocław Medical University Wroclaw Poland
4. Department of Cardiology, University Heart Center University Hospital Zurich Zurich Switzerland
5. Biostatistics Group, Department of Genetics Wroclaw University of Environmental and Life Sciences Wroclaw Poland
6. National Health Fund Warsaw Poland
7. Centre for Heart Diseases University Hospital Wroclaw Poland