Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Koretsune Yukihiro,Risk stratification by CHADS2 score and implication and perspective of antithrombotic therapy for patients with nonvalvular AF,Japanese Journal of Electrocardiology,0285-1660,Japanese Heart Rhythm Society,2009,29,3,245-247,https://cir.nii.ac.jp/crid/1390001204773992064,https://doi.org/10.5105/jse.29.245