THE CURRENT DIAGNOSTIC ACCURACY AND INTER-OBSERVER AGREEMENT OF VISUAL IMPRESSION WITH DIGITAL SINGLE-OPERATOR CHOLANGIOSCOPY FOR THE DIAGNOSIS OF INDETERMINATE BILIARY STRICTURES - Stassen, P; Goodchild, G; de Jonge, PJ; Erler, N; Poley, JW; Anderloni, A; Cennamo, Vince; Church, N; Sainz, IFU; Huggett, M; James, M; Joshi, D; Kylanpaa, L; Laleman, W; Nayar, M; Oppong, K; Potts, J; Repici, A; Udd, M; Vila, J; Wong, T; Bruno, M; Webster, G (Endoscopy, 2020)