KRAS and pancreatic neoplasm: Genomic qPCR screening detected KRAS amplification in two additional gastric cancer cell lines, SH101P4 (18-fold) and MKN1 (13-fold) (Figure 3a), whereas we did not detect amplification of greater than 4-fold in 17 other gastric cancer cell lines, or in 10 colon cancer and 11 pancreatic cancer cell lines (listed in Additional file 1, data not shown).