title: Null cells in leukaemia during therapy.
mesh_terms: D000964:Antimetabolites, Antineoplastic / Q000627:therapeutic use; D002648:Child; D003520:Cyclophosphamide / Q000627:therapeutic use; D006801:Humans; D007945:Leukemia, Lymphoid / Q000097:blood* / Q000188:drug therapy; D008214:Lymphocytes / Q000473:pathology
chemical_list: D000964:Antimetabolites, Antineoplastic; D003520:Cyclophosphamide