223735 Lymphoma	377794 group of disorders
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547 Non-Hodgkin lymphoma

definition

Non-Hodgkin malignant lymphomas(NHL) is a heterogeneous group of malignant tumors of the lymphoid system.

171915 B-cell non-Hodgkin lymphoma 2

171918 T-cell non-Hodgkin lymphoma 1

513 Acute lymphoblastic leukemia