_:vb50952539 . _:vb50952539 "An ovarian cancer that has_material_basis_in epithelial tissue and is located_in the ovary."^^ . _:vb50952539 . _:vb50952539 . _:vb50952539 . _:vb50952539 . _:vb50952539 "url:https://www.cancer.gov/types/ovarian"^^ .