As observed for ctDNA, the presence of KRAS or EGFR mutations in cancer specimens was not correlated with OS (HR = 0.65, 95% CI = 0.32–1.31, P = 0.211; and HR = 0.54, 95% CI = 0.21–1.39, P = 0.168). The gene discussed is KRAS; the disease is cancer.