1. Department
of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
2. Koch
Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
3. The
Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
4. Department
of Pathology, Brigham and Women’s Hospital, Boston, Massachusetts 02215, United States
5. Department
of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts 02115, United States
6. Tissue Engineering
Laboratories, VA Boston Healthcare System, Boston, Massachusetts 02130, United States