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) Lena Dahlberg and Kevin J. McKee and Amanda Frank and Mahwish Naseer,A systematic review of longitudinal risk factors for loneliness in older adults,Aging & Mental Health,1360-7863,Informa UK Limited,2021-02-10,26,2,225-249,https://cir.nii.ac.jp/crid/1360298760975878272,https://doi.org/10.1080/13607863.2021.1876638