"non-gestational ovarian choriocarcinoma"^^ . "An ovarian primitive germ cell tumor that has_material_basis_in trophoblastic cells and develops in the absence of a preceding gestational event."^^ . . . . . "NCI:C39991"^^ . "UMLS_CUI:C1518355"^^ . "DOID:7665"^^ . . "disease_ontology"^^ .