P-224Analysis of clinical outcomes of two antiEGFR antibodies, cetuximab and panitumumab, in the 1st line chemotherapy of RAS wild metastatic colorectal cancer, by neutrophil-to-lymphocyte ratio (NLR) kinetics. (20th June 2018) - Manaka, D; Nishitai, R; Konishi, S; Ota, T; Nishikawa, Y; Kudo, R; Kawaguchi, K; An, H; Hamasu, S