Successful treatment of β-catenin-positive, immune checkpoint inhibitor-resistant tumor in a case of multicentric hepatocellular carcinoma. - Nomiya H; Matsuda H; Nosaka T; Akazawa Y; Tanaka T; Takahashi K; Naito T; Ohtani M; Imamura Y; Nakamoto Y (Clinical journal of gastroenterology, 2026)