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. Author manuscript; available in PMC: 2021 Jun 1.
Published in final edited form as: Am J Surg. 2019 Jul 29;219(6):926–931. doi: 10.1016/j.amjsurg.2019.07.038

Figure 1.

Figure 1.

Flow diagram depicting the process of article selection.

Note: Articles were only classified under one exclusion criterion, though many could have been excluded based upon multiple criteria.