Development and validation of a scoring for in vivo differentiation of ulcerative colitis and Crohn's disease by using confocal laser endomicroscopy - Tontini, GE; Mudter, J; Vieth, M; Atreya, R; Günther, C; Kiesslich, R; Vecchi, M; Neurath, MF; Neumann, H (Zeitschrift für Gastroenterologie, 2014)