1 Division of Ophthalmology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
2 Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
3 Consult Services Section, National Eye Institute, National Institutes of Health, Bethesda, Maryland.
4 Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland.
5 Division of Ophthalmology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
6 Clinical Research Directorate, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, Maryland.
7 Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
8 Division of Oncology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
9 Consult Services Section, National Eye Institute, National Institutes of Health, Bethesda, Maryland. Electronic address: teresa.magonedequadroscosta@nih.gov.