00456nas a2200169   4500000000100000000000100001008004100002100001600043700001600059700001300075700001400088700001600102245013900118300000800257490000700265022001400272       2021                            d1 aA. Mitchell1 aJ. Snowball1 aT. Welsh1 aM. Watson1 aA. McGrogan00aPrescribing of direct oral anticoagulants and warfarin to older people with atrial fibrillation in UK general practice: a cohort study  a1890 v19  a1741-7015