1. Institute of Biomedical Engineering; National Taiwan University; Taipei Taiwan
2. Department of Physical Medicine and Rehabilitation; Chang Gung Memorial Hospital at Taipei; Taipei Taiwan
3. Department of Otolaryngology Head and Neck Surgery; Chang Gung Memorial Hospital at Linkou; Taoyuan Taiwan
4. School of Medicine; Chang Gung University; Taoyuan Taiwan
5. Department of Physical Medicine and Rehabilitation; Chang Gung Memorial Hospital at Taoyuan; Taoyuan Taiwan
6. Department of Physical Medicine and Rehabilitation; Chang Gung Memorial Hospital at Linkou; Taoyuan Taiwan
7. Healthy Aging Research Center; Chang Gung University; Taoyuan Taiwan