. 2023 Apr 22;7(2):zrad016. doi: 10.1093/bjsopen/zrad016
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This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 3.
Surgical patients’ smoking status ratios in the study years 2015–2019