Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Jonas Olesen and Christian Torp-Pedersen and Morten Hansen and Gregory Lip,The value of the CHA2DS2-VASc score for refining stroke risk stratification in patients with atrial fibrillation with a CHADS2 score 0–1: A nationwide cohort study,Thrombosis and Haemostasis,0340-6245,Georg Thieme Verlag KG,2012,107,06,1172-1179,https://cir.nii.ac.jp/crid/1361418520747633152,https://doi.org/10.1160/th12-03-0175