O-005A multicentre, prospective clinical evaluation study for analyzing RAS mutational status utilizing plasma circulating tumor DNA in patients with metastatic colorectal cancer. (20th June 2018) - Kagawa, Y; Kato, T; Bando, H; Akagi, K; Denda, T; Nishina, T; Komatsu, Y; Oki, E; Kudo, T; Yamanaka, T; Yoshino, T