1 Department of Physical Medicine and Rehabilitation, Chung Shan Medical University Hospital, Department of Physical Medicine and Rehabilitation, School of Medicine, Chung Shan Medical University, Taichung City, Taiwan. peter761217@hotmail.com.
2 Department of Physical Medicine and Rehabilitation, Chung Shan Medical University Hospital, Department of Physical Medicine and Rehabilitation, School of Medicine, Chung Shan Medical University, Taichung City, Taiwan. sujutsai@gmail.com.