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) WENG XL,Root canal morphology of permanent maxillary teeth in the Han nationality in Chinese Guanzhong area : a new modified root canal staining technique,J Endod,,,2009,35,,651-656,https://cir.nii.ac.jp/crid/1573387449822600832,