This is a preview. Log in through your library . Abstract The frequency of point mutations at codons 12 and 13 of the c-K-ras gene has been determined in a panel of more than 400 human tumors. Mutant ...

Conditional survival nomogram after an R0 resection for gastric cancer. Background: Recently, c-kit exon 11 deletions, including codons 557 and/or 558, have been reported to predict a worse prognosis ...