1. Department of Pediatric Cardiology and Congenital Heart Disease; Medical University of Gdańsk; Gdańsk Poland
2. First Department of Cardiology; Medical University of Warsaw; Warsaw Poland
3. Department of Cardiology with Subunit for Acute Coronary Syndromes; Clinical Hospital no. 2; Rzeszów Poland
4. First Department of Cardiology; Medical University of Poznań; Poznań Poland
5. Central Laboratory of Endovascular Diagnostics of Cardiovascular Diseases; Clinical Hospital; Poznań Poland
6. Department of Cardiology and Invasive Cardiology; Public Hospital; Szczecin Poland
7. Department of Cardiology; Public Hospital; Nowa Sól Poland
8. Department of Cardiology; Medical University of Łódź; Łódź Poland