1. Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
2. Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
3. Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan, and Department of Physical Therapy, College of Health Care, China Medical University, Taichung, Taiwan
4. Department of Physical Therapy, College of Medicine, National Cheng Kung University, No.1 Ta-Hsueh Road, Tainan, Taiwan