Documented delays in the diagnosis of retinoblastoma.
D002648:Child; D005134:Eye Neoplasms / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D012175:Retinoblastoma / Q000175:diagnosis* / Q000235:genetics; D012189:Retrospective Studies; D013997:Time Factors