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. 2014 Apr 27;9:31. doi: 10.1186/1749-799X-9-31

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Copyright © 2014 Xu et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Forest plots for ORs for AVN in proximal humeral fractures associated with operative fixation versus conservative treatment.Squares represent the effect size for the odds ratios of AVN in proximal humeral fractures associated with operative fixation versus conservative treatment. The sizes of the squares are proportional to the sizes of the cohorts. Error bars represent 95% confidence intervals (CIs). Diamond represents the pooled estimates within each analysis.