Takeshi Toyoda, Tetsuya Tsukamoto, Masami Yamamoto, Hisayo Ban, Noriko Saito, Shinji Takasu, Liang Shi, Ayumi Saito, Seiji Ito, Yoshitaka Yamamura, Akiyoshi Nishikawa, Kumiko Ogawa, Takuji Tanaka, Masae Tatematsu
BMC Gastroenterol. 2013; 13: 122. Published online 2013 Jul 30. doi: 10.1186/1471-230X-13-122