Vedolizumab treatment persistence and safety in a 2‐year data analysis of an extended access programme. - Danese, Silvio; Subramaniam, Kavitha; Van Zyl, Jan; Adsul, Shashi; Lindner, Dirk; Roth, Jeannine; Vermeire, Séverine (Alimentary Pharmacology & Therapeutics, 2021)