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. 2017 Jul 27;12(7):e0181539. doi: 10.1371/journal.pone.0181539

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© 2017 Xu et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — (A) Reasons for vaccination. (B) Reasons for non-vaccination. (C) The willingness of vaccination in 2016–17. (D) The main concerns about knowledge associated with influenza and vaccine.