1. Department of Rehabilitation Medicine, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan
2. Institute of Allied Health Sciences, College of Medicine, National Chen Kung University, Tainan, Taiwan
3. School of Medicine, National Yang-Ming Ciao-Tung University, Taipei, Taiwan
4. Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
5. Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan