S801 Long-Term Persistence to Ustekinumab and Adalimumab Among Bio-Naïve Patients With Crohn's Disease. (October 2022) - Zhdanava, Maryia; Ding, Zhijie; Manceur, Ameur M.; Holiday, Christopher; Zhao, Ruizhi; Izanec, James; Pilon, Dominic