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Liver metastasis and genomic variation in the synchronous and heterochronous cases. The ratio of liver metastasis incidence in four gene variations was marginal but not significant (P=0.067; 4×3 Pearson's χ2 test). Open bar H(−), no metastasis; gray bar H(+), heterochronous metastasis; closed bar H(+), synchronous metastasis.
