Durvalumab plus chemotherapy in advanced biliary tract cancer: 3-year overall survival update from the phase III TOPAZ-1 study. - Oh DY; He AR; Qin S; Chen LT; Okusaka T; Kim JW; Suksombooncharoen T; Lee MA; Kitano M; Burris HA; Bouattour M; Tanasanvimon S; et al. (Journal of hepatology, 2025)