1. Department of Information Management, National University of Kaohsiung City, Taiwan, R.O.C
2. Department of Information Management, I-Shou University, Kaohsiung City, Taiwan, R.O.C
3. Department of Physical Medicine and Rehabilitation/Department of Information Engineering, Kaohsiung Veterans General Hospital, I-Shou University, Kaohsiung City, Taiwan, R.O.C