1. Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
2. Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
3. Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado.
4. BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado.
5. Material Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado.
6. Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado.
7. Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado.
8. Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado.