Chung-Kan Tsao1, Joaquim Megias Barrera2, Charles Yuen Yung Loh3. 1. Department of Plastic Surgery, Chang Gung Memorial Hospital, 5 Fu-hsing Street, Gueishan, Taoyuan 333, Taiwan. Electronic address: nightman251@hotmail.com. 2. Department of Plastic Surgery, Chang Gung Memorial Hospital, Taiwan. 3. Center for Vascularized Composite Allotransplantation, Department of Plastic Surgery, Chang Gung Memorial Hospital, Taiwan; College of Medicine, Chang Gung University, Taiwan.