. 2016 Dec 9;95(49):e5602. doi: 10.1097/MD.0000000000005602
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This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0
Table 1.
Summary of characteristics of the included studies.
