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) GAMBORENA JI,Retention of ERA direct overdenture attachments before and after fatigue loading,Int J Prosthodont,,,1997,10,,123-130,https://cir.nii.ac.jp/crid/1571698600701602304,