1. Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery; Chang Gung Memorial Hospital, College of Medicine, Chang Gung University; Taoyuan Taiwan
2. Department of Hand, Plastic, and Reconstructive Surgery, BG-Center Ludwigshafen; University of Heidelberg; Ludwigshafen Germany
3. Center for Tissue Engineering; Chang Gung Memorial Hospital; Taoyuan Taiwan
4. Department of Plastic, Reconstructive, Aesthetic, and Hand Surgery; Medical Center Kassel; Kassel Germany
5. Department of Plastic and Reconstructive Surgery; Ohio State University Wexner Medical Center; Columbus Ohio