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. 2022 Sep 7;12(9):e051352. doi: 10.1136/bmjopen-2021-051352

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© Author(s) (or their employer(s)) 2022. 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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Vaccination intention and perceived vaccine effectiveness before receiving conflicting information (ie, after the vaccine announcement) and after receiving conflicting information by announcement certainty.