1 Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan. jacy50521@gmail.com.
2 Department of Physical Medicine and Rehabilitation, Centre hospitalier de l'Université de Montréal, Montreal, Canada. mathieu.boudier-reveret.chum@ssss.gouv.qc.ca.
3 Department of Rehabilitation Medicine, College of Medicine, Yeungnam University, Daegu, Republic of Korea. wheel633@ynu.ac.kr.
4 Department of Physical Medicine and Rehabilitation, College of Medicine, National Taiwan University, Taipei, Taiwan. myhsiao@ntu.edu.tw.