| Affiliation: | 1. David G. Cogan Ophthalmic Pathology Laboratory, Massachusetts Eye & Ear Infirmary, Harvard Medical School, Boston, Massachusetts;2. Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), and Department of Neuropathology, University Hospital, Heidelberg, Germany;3. Division of Pediatric Neuro-oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany;4. Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany;5. Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania;6. Duke University Department of Pathology, Durham, North Carolina |
