[1] Ronald Reagan UCLA Med Ctr, Ahmanson UCLA Univ Calif Los Angeles Cardiomyopat, Los Angeles, CA USA
[2] Duke Clin Res Inst, Durham, NC USA
[3] Harvard Med Sch, TIMI Thrombolysis Myocardial Infarct Study Grp, Cardiovasc Div, Brigham & Womens Hosp, Boston, MA USA
[4] Harvard Med Sch, Dept Med, Boston, MA USA
[5] Northwestern Univ, Feinberg Sch Med, Chicago, IL 60611 USA