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Distributions of 5-HTTLPR polymorphism and allele frequencies of the subjects
Genotypes: χ2=0.65, df=2, p=0.72; alleles: χ2=0.001, df=1, p=0.98. *Hardy-Weinberg equilibrium test for suicidal group: χ2=0.50, df=1, p=0.48, †Hardy-Weinberg equilibrium test for control group: χ2=0.20, df=1, p=0.66. MDD: major depressive disorder
