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Heritability of Asthma, BDR, and AHR by different numbers of genotype principal components included. Heritability values above 1.0 represent model convergence failures, and do not represent stable estimates of true heritability. This figure shows that the heritability estimates of each phenotype can vary with the number of included genotype PCs, but remain mostly stable for a range of PCs between 10 and 35.
