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) Guowei Li and Gregory Y. H. Lip and Anne Holbrook and Yaping Chang and Torben B. Larsen and Xin Sun and Jie Tang and Lawrence Mbuagbaw and Daniel M. Witt and Mark Crowther and Lehana Thabane and Mitchell A. H. Levine,Direct comparative effectiveness and safety between non-vitamin K antagonist oral anticoagulants for stroke prevention in nonvalvular atrial fibrillation: a systematic review and meta-analysis of observational studies,European Journal of Epidemiology,0393-2990,Springer Science and Business Media LLC,2018-06-08,34,2,173-190,https://cir.nii.ac.jp/crid/1360298763447007616,https://doi.org/10.1007/s10654-018-0415-7