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Schematic depiction of Kaplan-Meier overall survival curves related to the retinoblastoma patients stratified into different groups at the time of diagnosis: (A) age, (B) histologic type, (C) laterality, (D) race, (E) income, (F) residence (depending on Rural-Urban Continuum Codes), (G) tumor size, (H) year of diagnosis, (I) sex.
