1. Center for Tissue Engineering Chang Gung Memorial Hospital Taoyuan Taiwan
2. Division of Plastic and Reconstructive Surgery, Department of Surgery Hospital of Divine Savior Vienna Austria
3. Division of Plastic and Reconstructive Surgery Stanford University Palo Alto California USA
4. Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital Chang Gung University and Medical College Taoyuan Taiwan
5. Section of Plastic Surgery, Department of Surgery The University of Michigan Ann Arbor Michigan USA