1 Department of Physical Medicine and Rehabilitation and Community and Geriatric Research Center, National Taiwan University Hospital, Bei-Hu Branch, Department of Physical Medicine and Rehabilitation, National Taiwan University College of Medicine, Taipei, Taiwan.
2 Department of Physical Medicine and Rehabilitation and Community and Geriatric Research Center, National Taiwan University Hospital, Bei-Hu Branch, Department of Physical Medicine and Rehabilitation, National Taiwan University College of Medicine, Taipei, Taiwan, Center for Regional Anesthesia and Pain Medicine, Wang-Fang Hospital, Taipei Medical University, Taipei, Taiwan,. kvchang011@gmail.com.
3 Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.