1. Department of Mechanical Engineering, Chang Gung University, Tao‐Yuan 333, Taiwan, R.O.C.
2. Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Tao‐Yuan 333, Taiwan, R.O.C.
3. School of Medical Technology, Chang Gung University, Tao‐Yuan 333, Taiwan, R.O.C.
4. Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Tao‐Yuan 333, Taiwan, R.O.C.