"Null cell acute lymphoblastic leukaemia"@en . "SNOMEDCT_US_2021_09_01:277574007"^^ . . "null-cell leukaemia"@en . "null-cell leukemia"^^ . "UMLS_CUI:C0023483"^^ . . . "DOID:9954"^^ . "disease_ontology"^^ . "Null cell acute lymphoblastic leukemia"@en .