Chronic myeloid leukemia(CML) is one of the most dangerous diseases,its incidence is 0.36 among 100,000 persons in our country every year,accounts for thirdly in acute chronic leukemia.

• 慢性粒细胞白血病（chronic myeloid leukemia，CML）是血液系统最常见的恶性疾病之一，在国内年发病率约为0.；36/10万，占急慢性白血病的第三位。