_:vb50950565 . _:vb50950565 . _:vb50950565 . _:vb50950565 "url:https://www.sciencedirect.com/science/article/pii/0046817791902054"^^ . _:vb50950565 . _:vb50950565 "An ovary epithelial cancer that has_material_basis_in epithelial and stromal tissue and arises from the surface epithelium of the ovary."^^ . _:vb50950565 .