1. Department of Bioengineering, Hanyang University; Seoul 133-791 Republic of Korea
2. School of Chemical and Biological Engineering; Seoul National University; Seoul 151-742 Republic of Korea
3. Brain Korea 21 Project for Medical Science; Yonsei University College of Medicine; Seoul 120-752 Republic of Korea
4. Division of Cardiovascular Surgery, Cardiovascular Center; Yonsei University College of Medicine; Seoul 120-752 Republic of Korea
5. Division of Cardiology; Cardiovascular Hospital and Research Institute, Yonsei University College of Medicine; Seoul 120-752 Republic of Korea
6. Department of Radiology; Yonsei University College of Medicine; Seoul 120-752 Republic of Korea
7. Department of Research and Development for Cellular Therapy; Medipost Biomedical Research Institute; Yongin 449-795 Republic of Korea