Induction Efficacy and Safety of Upadacitinib for Active Crohn's Disease in Japanese Patients: A Multicenter Retrospective Study. - Saiki T; Umeno J; Matsuno Y; Kawasaki K; Moriyama T; Takedomi H; Tsuruoka N; Ashizuka S; Takatsu N; Hisabe T; Nozaka Y; Kurahara K; et al. (JGH open : an open access journal of gastroenterology and hepatology, 2025)