_:vb50954547 . "NCI:C6551"^^ . . _:vb50954547 . "DOID:6083"^^ . . . "childhood ovarian yolk sac tumor"@en . . "UMLS_CUI:C1332993"^^ . "childhood ovarian endodermal sinus neoplasm"@en . _:vb50954547 . "childhood ovarian yolk sac tumour"@en . "pediatric Ovarian Yolk Sac tumor"@en . "childhood ovarian endodermal sinus tumour"@en . "paediatric Ovarian Yolk Sac tumour"@en . _:vb50954547 . . "disease_ontology"^^ . "childhood ovarian endodermal sinus tumor"^^ . _:vb50954547 . "An ovarian endodermal sinus tumor that presents in childhood."^^ .