_:vb50953985 . _:vb50953985 "An ovarian benign neoplasm that is composed_of epithelial ovarian tissue."^^ . _:vb50953985 . _:vb50953985 . _:vb50953985 . _:vb50953985 "url:http://www.ajronline.org/cgi/content/full/182/5/1259"^^ . _:vb50953985 .