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. 2014 Aug 20;15(1):97. doi: 10.1186/s12931-014-0097-y

Figure 1.

Figure 1

The three-cohort meta-analysis including 1000 Genomes project imputed data for total lung capacity measured by chest CT in COPD subjects after adjustment for age, gender, height, pack-years of cigarette smoking and genetic ancestry-based principal components. (a) The quantile–quantile plot and (b) Manhattan plot of –log10 P values.