1. Institute of Nursing, Taipei Medical University, Taipei, Taiwan, People's Republic of China
2. Biomedical Engineering Center, Industrial Technology Research Institute, Hsin-Chu, Taiwan, People's Republic of China
3. Department of Medicine, Taipei Medical University - Wan Fang Hospital, Taipei, Taiwan, People's Republic of China
4. Department of Medicine and Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China