[1] Andrzej Frycz Modrzewski Krakow Univ, Dept Cardiol, Coll Med, Krakow, Poland
[2] Jagiellonian Univ Med Coll, Dept Cardiol 2, Students Sci Grp, Krakow, Poland
[3] Acad Silesia, Dept Cardiac Surg, Katowice, Poland
[4] Amer Heart Poland, Dept Cardiac Surg, Bielsko Biala, Poland
[5] Amer Heart Poland, Dept Cardiol, Bielsko Biala, Poland
[6] Amer Heart Poland, Ctr Cardiovasc Res & Dev, Katowice, Poland
[7] Andrzej Frycz Modrzewski Krakow Univ, Div Cardiovasc Surg, Coll Med, Krakow, Poland