. 2019 Nov 15;98(46):e17980. doi: 10.1097/MD.0000000000017980
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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 2.
Main features of the selected studies.
