著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) VIAPONGSE C,The empty delta sign : frequency and significance in 76 cases of dural sinus thrombosis,Radiology,,,1987,162,,779-785,https://cir.nii.ac.jp/crid/1572261549697775744,