promyelocyte 早幼粒细胞;前骨髓细胞;前骨髓白血球;前骨髓球;前髓细胞；例句：Detection of PML/ RAR α Fusion Gene in Acute Promyelocyte Leukemia 急性早幼粒细胞白血病PML/RARα融合基因的检测