cri du chat syndrome

例句：

1. 1. Thepatient was diagnosed with chronic lymphocytic leukemia.
   病人被诊断出患有慢性淋巴细胞白血病。
2. 2. He has been suffering from chronic myeloid leukemia for several years.
   他已患有慢性髓系白血病数年。
3. 3. This condition is characterized by a persistent and progressive decline in the white blood cell count.
   这种状况的特点是白细胞计数持续且逐渐下降。