Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Richard T. Kao and Salvador Nares and Mark A. Reynolds,Periodontal Regeneration – Intrabony Defects: A Systematic Review From the AAP Regeneration Workshop,Journal of Periodontology,0022-3492,Wiley,2015-02,86,2S,S77,https://cir.nii.ac.jp/crid/1361418519238486528,https://doi.org/10.1902/jop.2015.130685