1. St Mary's Hospital, McGill University; Family Medicine; 377 Rue Jean Brilliant Montreal QC Canada H3T 1M5
2. University Hospital Basel; Institute for Clinical Epidemiology and Biostatistics; Hebelstrasse 10 Basel Switzerland 4031
3. VA Medical Center and University of Colorado; 1055 Clermont St Denver Colorado USA
4. University of Texas Southwestern Medical School; Cardiology/Internal Medicine; 5909 Harry Hines Blvd Dallas Texas USA
5. S. Filippo Neri Hospital; Cardiovascular Department; 330 Viale Gorgia da Leontini Rome Italy 00124
6. Gelderse Vallei Hospital; Cardiology Department; postbus 9025 Ede Netherlands 6710 HN
7. Na Homolce Hospital; Department of Cardiology; Prague Czech Republic
8. Instituto de Cardiologia; Coronary Intensive Care Unit; Juana F Cabrel Corrientes Argentina
9. Franciscus Gasthuis Rotterdam; Department of Cardiology; Rotterdam Netherlands
10. University of Ottawa; Faculty of Health Sciences; 451 Smyth Road Ottawa ON Canada K1H 8M5
11. McMaster University; Department of Clinical Epidemiology and Biostatistics; 1200 Main Street West Hamilton ON Canada L8N 3Z5
12. University Hospital Basel (USB); Basel Institute for Clinical Epidemiology and Biostatistics; Basel Switzerland