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. 2013 Jun 25;8(6):e66227. doi: 10.1371/journal.pone.0066227

Figure 1. Flow chart of the Meta-Analysis of 5-HTTLPR polymorphisms and Post-traumatic Stress Disorder (PTSD).

Figure 1

Adapted from Sagoo GS, Little J, Higgins JP, Systematic Reviews of Genetic Association Studies. Human Genome Epidemiology Network. PLOS Med 2009; 6(3): e28 doi: e28 10.1371/journal.pmed.1000028 and Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2009). Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. PLoS Med 6(6): e1000097. doi:10.1371/journal.pmed1000097.