1. The Cardiovascular Convergence Research Center of Chonnam National University Hospital, Designated by Korea Ministry of Health and Welfare, Gwangju, Korea.
2. Korea Cardiovascular Stent Research Institute, Jangsung, Korea.
3. Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea.
4. Division of Cardiology, Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea.