OC.06.1: Onset of Efficacy of Tofacitinib for Induction Therapy in Patients with Active Ulcerative Colitis in two Multinational, Phase 3 Clinical Trials. (15th March 2017) - Danese, S.; Sandborn, W.J.; Panes, J.; Zhang, H.; Woodworth, D.; Marren, A.; Su, C.