1. Department of Mechanical The University of Michigan Ann Arbor Michigan USA
2. Institute of Gerontology The University of Michigan Ann Arbor Michigan USA
3. Department of Biomedical Engineering The University of Michigan Ann Arbor Michigan USA
4. Division of Kinesiology The University of Michigan Ann Arbor Michigan USA
5. Section of Plastic and Reconstructive Surgery The University of Michigan Ann Arbor Michigan USA
6. The Macromolecular Science and Engineering Program The University of Michigan Ann Arbor Michigan USA
7. Harvard-MIT HST Cambridge Massachusetts USA