[1] Univ Uppsala Hosp, Uppsala Clin Res Ctr UCR, Uppsala, Sweden
[2] Duke Clin Res Inst, Durham, NC USA
[3] Brigham & Womens Hosp, TIMI Study Grp, Boston, MA 02115 USA
[4] Minist Interior, Inst Med, Sofia, Bulgaria
[5] Astra Zeneca Res & Dev, Wilmington, DE USA
[6] Aarhus Univ Hosp, Dept Cardiol, DK-8000 Aarhus, Denmark
[7] Volvat Med Ctr, Oslo, Norway
[8] Univ Sheffield, Dept Cardiovasc Sci, Sheffield, S Yorkshire, England