1. 1Department of Neurological Surgery, Weill Medical College of Cornell University and Memorial Sloan–Kettering Cancer Center, New York, New York;
2. 2Division of Pediatric Neurosurgery, Childrens Hospital Los Angeles, The Keck School of Medicine, University of Southern California, Los Angeles, California;
3. 3Division of Pediatric Neurosurgery, New York University Langone Medical Center, New York, New York; and
4. 4The Neural Tumors Program and Radiation Oncology Program, Childrens Hospital Los Angeles, California