[1] John Paul 2 Hosp, Dept Coronary Dis & Heart Failure, Krakow, Poland
[2] Jagiellonian Univ, Inst Cardiol, Med Coll, Krakow, Poland
[3] Univ Edinburgh, British Heart Fdn Ctr Cardiovasc Sci, Edinburgh, Scotland
[4] Jagiellonian Univ, Inst Cardiol, Dept Coronary Dis & Heart Failure, Med Coll, Pradnicka 80, PL-31202 Krakow, Poland