1. Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Biomedical Engineering, Yonsei University College of Medicine, Seoul, Korea.
3. Division of Medical Information and Technology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
4. Department of Plastic and Reconstructive Surgery, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.