1. Department of Biomedical Sciences, Chang Gung University, Taoyuan
2. Center for Tissue Engineering, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan
3. Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan
4. Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, Department of Hand and Plastic Surgery, University of Heidelberg, Ludwigshafen, Germany
5. College of Medicine, Chang Gung University, Taoyuan