[1] Erasmus Univ, Med Ctr, Thoraxctr, NL-3015 GD Rotterdam, Netherlands
[2] Wojewodski Szpital, Kniaziewicza, Poland
[3] Puerta Hierro, Madrid, Spain
[4] Univ Toronto, St Michaels Hosp, Div Cardiol, Toronto, ON M5B 1W8, Canada
[5] Natl Inst Cardiol, Budapest, Hungary
[6] Knappschafts Krankenhaus, Recklinghausen, Germany
[7] Aventis Pharma, Paris, France