"disease_ontology"^^ . _:vb50953835 . "Yolk Sac tumour of the CNS"@en . "Yolk Sac tumor of the CNS"@en . "UMLS_CUI:C1377613"^^ . "central nervous system endodermal sinus tumor"^^ . "DOID:6051"^^ . "DOID:5343"^^ . . _:vb50953835 . . "NCI:C7011"^^ . "UMLS_CUI:C1337040"^^ . "NCI:C6209"^^ . "central nervous system endodermal sinus tumour"@en . "paediatric central nervous system Yolk Sac tumour"@en . "pediatric central nervous system Yolk Sac tumor"@en . _:vb50953835 . _:vb50953835 . . "childhood central nervous system endodermal sinus neoplasm"@en . _:vb50953835 . .