1. P445 Does The Sequence Matter ? Comparative effectiveness of a second line biologic in patients with Ulcerative Colitis: vedolizumab followed by an anti-TNF versus anti-TNF followed by vedolizumab. (27th May 2021) Authors: Miller, C; Kwok, H; Parisi, I; Harrow, P; McCartney, S; Vega, R; Rahman, F; Seward, E; Mehta, S; Lim, S; Sharma, E; Samaan, M; Bancil, A; Kok, K; Shalabi, A; Johnston, E; Katarey, D; Taherzadeh, N; Murray, C; Sharip, M Journal: Journal of Crohn's and colitis Issue: Volume 15(2021)Supplement 1 Page Start: S443 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗