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) BECKER W.,Clincal and volumetric analysis of three-wall intrabony defects following open flap debridement,J. Periodontol.,,,1985,57,,277-285,https://cir.nii.ac.jp/crid/1570291224449415296,