1. Department of Internal Medicine, Samsung Medical Center, Seoul, Republic of Korea.
2. Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea.
3. Brain Republic of Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
4. Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
5. Department of Biochemistry & Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea.
6. Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea.