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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Clin Pharmacol Ther. 2013 May 9;94(3):394–399. doi: 10.1038/clpt.2013.96

Figure 1. PRISMA study selection flow diagram.

Figure 1

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow diagram depicting the steps undertaken in the systematic review prior to meta-analysis, including the number of records identified, included and excluded. Detailed reasons for exclusion can be found in Supplemental Table 3.