1. Department of Chemical and Materials Engineering, College of Engineering, Chang Gung University
2. Craniofacial Research Center, Department of Medical Research, Department of Plastic & Reconstructive Surgery and the Craniofacial Center, Chang Gung Memorial Hospital, Taoyuan
3. Department of Plastic & Reconstructive Surgery and the Craniofacial Center, Chang Gung Memorial Hospital, Kaoshiung, Taiwan.