1. Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea.
2. Division of Hematology and Medical Oncology, Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea.
3. Department of Physical Medicine and Rehabilitation, Haeundae Paik Hospital, Inje University School of Medicine, Busan, Korea.