Biliary intraepithelial neoplasia: an international interobserver agreement study and proposal for diagnostic criteria

Zen, Y; Adsay, Nv; Bardadin, K; Colombari, R; Ferrell, L; Haga, H; Hong, Sm; Hytiroglou, P; Kloppel, G; Lauwers, Gy; VAN LEEUWEN, Dj; Notohara, K; Oshima, K; Quaglia, A; Sasaki, M; Sessa, Fausto; Suriawinata, A; Tsui, W; Atomi, Y; Nakanuma, Y.