_:vb50952417 . _:vb50952417 . "UMLS_CUI:C1332957"^^ . . "childhood central nervous system primitive neuroectodermal neoplasm"^^ . "pediatric CNS PNET"@en . "DOID:3870"^^ . "disease_ontology"^^ . _:vb50952417 . _:vb50952417 . "NCI:C5961"^^ . . . _:vb50952417 . . .