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) VAN DER HEIJDE DMFM,Validity of single variables and composite indices for measuring disease activity in rheumatoid arthritis,Ann Rheum Dis,,,1992,51,,177-181,https://cir.nii.ac.jp/crid/1572543025421785600,