_:vb50954603 . _:vb50954603 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4938474/"^^ . _:vb50954603 . _:vb50954603 . _:vb50954603 . _:vb50954603 "A malignant ovarian surface epithelial-stromal neoplasm that is a mixed cell type cancer that has_material_basis_in carcinomatous (epithelial tissue) and sarcomatous (connective tissue) components."^^ . _:vb50954603 .