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) SPENCER S,Impact of preventing exacerbations on deterioration of health status in COPD,Eur Respir J,,,2004,23,,698-702,https://cir.nii.ac.jp/crid/1573105974863365760,