1. Department of Bioengineering, Rice University, Houston, Texas.
2. Department of Biomaterials, University Medical Center Nijmegen, Nijmegen, The Netherlands.
3. Department of Plastic Surgery, University of Texas M.D. Anderson Cancer Center, Houston, Texas.
4. Department of Orthopaedic Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas.
5. Chrysalis BioTechnology, Galveston, Texas.