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. 2021 Nov 16;8(2):e001784. doi: 10.1136/openhrt-2021-001784

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.

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Identification of patients. Flow chart illustrating how patients switching from warfarin to DOACs (and those switching back within the same period) were identified based on prescriptions issued. DOACs, direct-acting oral anticoagulants.