S1028 Symptoms and Laboratory Values as Proxies for Endoscopic and Histologic Clinical Endpoints in Ulcerative Colitis: A Mediation Analysis Based on Upadacitinib Phase 3 Induction Trials. (October 2022) - Yang, Min; Fillbrunn, Mirko; Danese, Silvio; Burisch, Johan; Tanida, Satoshi; Sharma, Dolly; Ilo, Dapo; Zhou, Wen; Sanchez-Gonzalez, Yuri; Peyrin-Biroulet, Laurent