1. TIMI Study Group, Cardiovascular Division, Department of Medicine, Harvard Medical School, Brigham and Women’s Hospital, Boston, Mass
2. University of Florida College of Medicine, Jacksonville, Fla
3. Hillel Yaffe Medical Center, Hadera, Israel
4. Millpark Hospital, Johannesburg, South Africa
5. Department of Cardiology, University Hospital Nijmegen, Nijmegen, the Netherlands
6. Canadian Heart Research Center, University of Toronto, St. Michael’s Hospital, Toronto, Ontario, Canada
7. Department of Cardiology, Catholic University School of Medicine, Santiago, Chile
8. Black Hills Cardiovascular Research Group, Black Hills, SD