_:vb50955458 . . . _:vb50955459 . _:vb50955458 . _:vb50955459 . . "SNOMEDCT_US_2021_09_01:78303004"^^ . _:vb50955458 . _:vb50955459 . "sarcoma of Leptomeninges"@en . . "leptomeninges sarcoma"^^ . . _:vb50955458 . "disease_ontology"^^ . _:vb50955459 . "Leptomeningeal sarcoma"@en . _:vb50955459 . "DOID:7689"^^ . "NCI:C8312"^^ . "UMLS_CUI:C1384416"^^ . _:vb50955458 .