Incidence of Venous Thromboembolic Events in Patients With Ulcerative Colitis Treated With Tofacitinib in the Ulcerative Colitis Clinical Development Program: 644. (October 2019) - Sandborn, William J.; Panés, Julian; Sands, Bruce E.; Reinisch, Walter; Su, Chinyu; Lawendy, Nervin; Koram, Nana; Fan, Haiyun; Jones, Thomas V.; Modesto, Irene; Quirk, Daniel; Danese, Silvio