A Meckel’s diverticulum with an ileal ulcer detected with double-balloon enteroscopy - Honda, K; Mizutani, T; Higuchi, N; Kanayama, K; Sumida, Y; Yoshinaga, S; Itaba, S; Akiho, H; Yoshimura, R; Nakamura, K; Ueki, T; Miyasaka, Y; Takayanagi, R (Endoscopy, 2007)