Background: Subsequent malignant neoplasms are a major cause of premature death in survivors of hereditary retinoblastoma.
背景：继发恶性肿瘤是遗传性视网膜母细胞瘤生存者早死主要原因。
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Diabetic vascular complications are the main cause of cripples and death of the diabetic patients, and the hereditary factor might play the vital role in the morbidity process of complications.