1. Department of Medical Engineering, Yonsei University College of Medicine, Seoul, South Korea.
2. Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea.
3. Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University, Kimhae, South Korea.
4. Bioengineering Research Center, Sejong University, Seoul, South Korea.
5. Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan.
6. Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.