[1
]
Department of Physical Medicine and Rehabilitation, Jeju National University Hospital,
Jeju National University School of Medicine, Jeju, Republic of Korea(∗).
[2
]
Department of Physical Medicine and Rehabilitation, Jeju National University Hospital,
Aran 13 gil 15, Jeju-si, Jeju, 690-767, Republic of Korea(†). Electronic address:
brkim08@gmail.com.
[3
]
Department of Physical Medicine and Rehabilitation, Jeju National University Hospital,
Jeju National University School of Medicine, Jeju, Republic of Korea(‡).
[4
]
Department of Physical Medicine and Rehabilitation, Jeju National University Hospital,
Jeju National University School of Medicine, Jeju, Republic of Korea(§).