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) Paul van Eekeren and Ali Tahmaseb and Daniël Wismeijer,Crestal bone changes in macrogeometrically similar implants with the implant–abutment connection at the crestal bone level or 2.5 mm above: a prospective randomized clinical trial,Clinical Oral Implants Research,0905-7161,Wiley,2015-03-21,27,12,1479-1484,https://cir.nii.ac.jp/crid/1360011143732462208,https://doi.org/10.1111/clr.12581