1. The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea wMinistry of Health and Welfare; Gwangju 501-757 Republic of Korea
2. Korea Cardiovascular Stent Research Institute; Jangsung 501-893 Republic of Korea
3. Department of Polymer Science and Engineering; Sunchon National University; Suncheon 540-950 Republic of Korea
4. Department of Cardiology; Chonnam National University Hospital; Gwangju 501-757 Republic of Korea