1. Department of Surgery, University of Arizona, Tucson, Arizona, USA.
2. Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, California, USA.
3. Department of Plastic and Reconstructive Surgery and Hand surgery, BG Trauma Clinic Ludwigshafen, University of Heidelberg, Heidelberg, Germany.
4. Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
5. Department of Chemical Engineering, Stanford University, Stanford, California, USA.