IGFBP4 is a Metric for Primary Biliary Cholangitis and Attenuates Biliary Epithelial Cell Injury. - Zhou X; Shao S; Yang D; Cheng Z; Tanaka T; Leung PSC; Tsuneyama K; Ansari AA; Ridgway WM; Invernizzi P; Bowlus CL; Gershwin ME; et al. (Liver international : official journal of the International Association for the Study of the Liver, 2026)