1. Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA.
2. Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA 90073, USA.
3. UCLA Molecular Biology Institute, Los Angeles, CA 90095, USA.
4. Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
5. Department of Materials Science and Engineering, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
6. Section of Plastic and Reconstructive Surgery, University of Chicago, Chicago, IL 60637, USA.
7. Department of Orthopaedic Surgery, University of Chicago, Chicago, IL 60637, USA.
8. Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.