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) KUMAR R,Age-related decline in immunity : implications for vaccine responsiveness,Expert Rev Vaccines,,,2008,7,4,467-479,https://cir.nii.ac.jp/crid/1572261551259027840,