[1] Abbott NW Hosp, Minneapolis Heart Inst Fdn, Minneapolis, MN 55407 USA
[2] Attikonical Sch, Dept Cardiol 2, Athens, Greece
[3] Yale New Haven Hosp, Dept Internal Med, New Haven, CT USA
[4] Univ Naples Federico II, Dept Adv Biomed Sci, Naples, Italy
[5] Cardiovasc Ctr Aalst, Aalst, Belgium
[6] Powerful Med, Bratislava, Slovakia