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白血病的发病率每年约为4/10万人(1.8/10万～7.09/10万人),在成人恶性肿瘤疾患中居第七位,在小儿各种肿瘤性疾患中发病率居首位,已成为威胁小儿生命的主要疾病之一。1958年国内文献报道,小儿白血病占住院患儿总数的0.24～0.36％。国外报道小儿白血
The incidence of leukemia is about 4/10 million (1.8 / 100,000 to 7.09 / 10 million) per year, ranking seventh in adult malignant tumor and the highest incidence among various neoplastic diseases in children. Become one of the main diseases that threaten children’s life. Domestic literature in 1958 reported that pediatric leukemia accounted for 0.24 to 0.36% of the total number of hospitalized children. Foreign reports of children with white blood