RT Journal Article SR Electronic T1 Atrial fibrillation is associated with an increased risk of cognitive impairment and dementia with or without a history of clinical stroke JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP e3 OP e3 DO 10.1136/eb-2013-101342 VO 19 IS 1 A1 Paola Forti YR 2014 UL http://ebm.bmj.com/content/19/1/e3.abstract AB