References
- Yasuda K, Kiyota K, Mukai H, Nishimura K, Che E, Kobayashi M, Yoshida S, Imaoka W, Fujimoto S, Nakamima M, Tanaka Y, Kawai K. Gastroenterol Endosc 1984; 26: 1911–1923
- Strohm WD, Kurtz W, Classen M. Scand J Gastroenterol 1984; 19(94)60–64
- Yasuda K, Tanaka Y, Fujimoto S, Nakajima M, Kawai K. Scand J Gastroenterol 1984; 19(102)9–17
- Yasuda K, Mukai H, Yoshida S, Imaoka W, Fujimoto S, Nakajima M, Kawai K. Gastroenterol Endosc 1985; 27: 934–945