1. Tissue Engineering Laboratory, Robert E. Wise M.D. Research and Education Institute and Department of Plastic and Reconstructive Surgery, Lahey Clinic, Burlington, Massachusetts.
2. Tissue Engineering Laboratory and Cell and Molecular Biology Laboratory, Robert E. Wise M.D. Research and Education Institute, Lahey Clinic, Burlington, Massachusetts.
3. Department of Plastic and Reconstructive Surgery, Lahey Clinic, Burlington, Massachusetts.
4. Cambridge Scientific Inc., Cambridge, Massachusetts.