_:vb50952537 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3362466/"^^ . _:vb50952537 . _:vb50952537 . _:vb50952537 . _:vb50952537 "An ovarian epithelial cancer that derives_from epithelial transitional cells."^^ . _:vb50952537 . _:vb50952537 .