1. Department of Life Science, National Taiwan Normal University, Taipei, Taiwan, Republic of China;
2. Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China;
3. Department of Pediatrics, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China;
4. Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China; and
5. Department of Anatomy, Taipei Medical University, Taipei, Taiwan, Republic of China