Acknowledgements
This is an investigator-initiated study supported by a grant from Daewoong Pharmaceutical Co., Ltd., South Korea. The funder provided SR sarpogrelate (Anplone®) for this study but had no role in study design, data collection, analysis, interpretation, or writing of the report. We thank doctors Mi-Sook Kim and So-Hyun Choi for their independent statistical analyses and all the patients and staff who participated in this trial. The current addresses of the two authors were changed to Kyungpook National University School of Medicine (W.S.Y.) and Asan Medical Center (J.G.G.).