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) GRIFFITH JF,Modified Pfirrmann grading system for lumbar intervertebral disc degeneration,Spine,,,2007,32,,E708-E712,https://cir.nii.ac.jp/crid/1572543025703798784,