1. Harvard-Massachusetts Institute of Technology, Division of Health Sciences and Technology, Harvard Medical School/Brigham and Women's Hospital, Room 265, 65 Landsdowne Street, Cambridge, MA 02139, USA
2. Surgery, Harvard Medical School, Massachusetts General Hospital, Warren Building 1157, 55 Fruit Street, Boston, MA 02114, USA
3. Pediatric Surgery, Massachusetts General Hospital, Warren Building 1157, 55 Fruit Street, Boston, MA 02114, USA
4. Laboratory for Tissue Engineering and Organ Fabrication, Massachusetts General Hospital, Warren Building 1157, 55 Fruit Street, Boston, MA 02114, USA
5. Department of Chemical Engineering, Massachusetts Institute of Technology, Room E25-342, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA