1. Departments of Neurosurgery, Children's Hospital of Philadelphia
2. Departments of Neurosurgery, University of Pennsylvania School of Medicine
3. Departments of Biochemistry and Biophysics, University of Pennsylvania School of Medicine
4. Departments of Radiology, University of Pennsylvania School of Medicine
5. Departments of Neuro-oncology Group, Children's Hospital of Philadelphia
6. Departments of Pediatrics, University of Pennsylvania School of Medicine
7. Siemens Medical Systems, Isolen, New Jersey
8. Departments of Neuropathology, Children's Hospital of Philadelphia
9. Departments of Pathology and Neuropathology, University of Pennsylvania School of Medicine
10. Departments of Neuroradiology, Children's Hospital of Philadelphia