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. 2021 Mar 29;49(3):0300060521996911. doi: 10.1177/0300060521996911

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© The Author(s) 2021

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Forest plot of a meta-analysis to evaluate the relationship between preoperative vitamin D and the risk for postoperative hypocalcaemia after thyroidectomy in adult patients. CI, confidence interval.^15,25,26,28