"SNOMEDCT_US_2021_09_01:254876005"^^ . "An ovarian primitive germ cell tumor that has_material_basis_in cells that line the yolk sac of the embryo."^^ . "NCI:C8107"^^ . "UMLS_CUI:C0346188"^^ . "Endodermal sinus tumour of ovary"@en . . "ovarian endodermal sinus tumor"^^ . . "DOID:5350"^^ . "disease_ontology"^^ . . . "Ovarian Yolk Sac tumour"@en . "Ovarian Yolk Sac tumor"@en . "Endodermal sinus tumor of ovary"@en . "ovarian endodermal sinus tumour"@en .