Etrolizumab Treatment Modulates MAdCAM‐1 Levels in Serum in Ulcerative Colitis Patients: 1876. (October 2015) - Fuh, Franklin; Erickson, Rich; Schofield, Cheryl; Tang, Meina; Maciuca, Romeo; Keir, Mary; Vermeire, Séverine; O'Byrne, Sharon; Ramirez‐Montagut, Teresa