1. Division of Cardiology, Department of Medicine; Helsinki University Central Hospital; Finland
2. Institut für Herzinfarktforschung Ludwigshafen an der Universität Heidelberg; Germany
3. Helmut Drexler, Abt. Kardiologie u. Angiologie, Zentrum Innere Medizin, Med. Hochschule Hannover (MHH); Germany
4. Cardiology Department; CHU Pitie Salpetriere; Paris France
5. Department of Cardiology, A.Z Middelheim Hospital; University of Antwerp; Belgium
6. University of Bergen, Cardiology Division; Stavanger University Hospital; Norway
7. Department of Cardiology; Military Hospital; Wroclaw Poland
8. Luigi Tavazzi, Divisione di Cardiologia, Policlinico san Matteo, I.R.C.C.S; Pavia Italy
9. Department of Internal Medicine; University Hospital Zurich; Switzerland
10. Department of Cardiology - Planta 1; Hospital Universitario La Paz; Madrid Spain