NRAS and colonic neoplasm: The presence of NRAS Q61 mutations was correlated to right colon tumor localization with OR = 4.160 (95% CI = [1.226, 14.1137]), and a RR2 = 2.755 (95% CI = [2.538, 2.970]), while the absence of NRAS Q61 mutations was associated with the left colon tumor localization by RR3 = 1.510 (95% CI = [1.042, 2.188]).