Bokemeyer Bokemeyer C C Van Cutsem Van Cutsem E E Rougier Rougier P P Addition of cetuximab to chemotherapy as first-line treatment for KRAS wild-type metastatic colorectal cancer: pooled analysis of the crystal and opus randomised clinical trials Addition of cetuximab to chemotherapy as first-line treatment for KRAS wild-type metastatic colorectal cancer: pooled analysis of the crystal and opus randomised clinical trials Eur J Cancer Eur J Cancer 2012 2012 48 48 1466 1466 1475 1475 10.1016/j.ejca.2012.02.057 10.1016/j.ejca.2012.02.057 supplied-pmid 22446022? Here, KRAS is linked to metastatic colorectal cancer.