Following the analysis of TIMI flow and frame count at each study center, the results were carefully recorded on the CRFs. This data was stored on a compact disk or a film and labeled with the subject's study I.D. number. It was then sent with the summary worksheets and ECGs to the Angiographic Core Laboratory located at the Leuven Coordinating Center (LCC) of the University Hospital Gasthuisberg (Leuven, Belgium) for central evaluations.