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Fold change of miR-29, miR-92, miR-145 and miR-195 in colorectal cancer (CRC) plasma at different clinical stages. Expression levels of the four genes varied in different clinical stages. Bars show the fold change represented as mean ± standard deviation in the plasma from 20 CRC patients versus non-neoplastic plasma controls. All experiments were conducted in triplicate (*P<0.05, **P<0.01).
