n.血液学；血液病学
=hematology.
Leukemia is a Primary Hematologic in building-blood organize, it is a malignancy from haematology and harms badly the health of mankind. 白血病是一种造血组织的原发性血液病,是严重危害人类健康的血液系统常见的恶性肿瘤。
