Development and assessment of morphologic criteria for diagnosing gastric cancer using confocal endomicroscopy: an ex vivo and in vivo study - Kakeji, Y; Yamaguchi, S; Yoshida, D; Tanoue, K; Ueda, M; Masunari, A; Utsunomiya, T; Imamura, M; Honda, H; Maehara, Y; Hashizume, M (Endoscopy, 2006)