1. Department of Traditional Chinese Medicine, Taipei City Hospital RenAi Branch, Taipei, Taiwan, ROC
2. Department of Electrical Engineering, Yuan Ze University, Taoyuan, Taiwan, ROC
3. Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC
4. Department of Rehabilitation, Taipei City Hospital RenAi Branch, Taipei, Taiwan, ROC