Specific somatic mutation frequencies in samples morphologically acceptable, not-acceptable and derived from published data.

<p>The frequencies of each specific mutation at codon 12 of K-RAS in not acceptable (<i>NA</i>) or acceptable (<i>A</i>) mCRC tumor specimens compared to the corresponding online dataset (<b>A</b>) were not statistically different (p>.05). Mutation frequencies at the exons 18–21 of EGFR were statistically different only for the exon 20 between <i>NA</i> or <i>A</i> specimens versus the online dataset (<b>B</b>). X-axis: specific K-RAS or EGFR mutations, divided into <i>NA</i>, <i>A</i> and the online dataset samples; Y-axis: frequency distributions of mutated samples.