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) Agnes af Geijerstam and Kirsten Mehlig and Mats Börjesson and Josefina Robertson and Jenny Nyberg and Martin Adiels and Annika Rosengren and Maria Åberg and Lauren Lissner,"Fitness, strength and severity of COVID-19: a prospective register study of 1 559 187 Swedish conscripts",BMJ Open,2044-6055,BMJ,2021-07,11,7,e051316,https://cir.nii.ac.jp/crid/1360016868134612224,https://doi.org/10.1136/bmjopen-2021-051316