Gotoh Y, Tamada K, Tomiyama T, Wada S, Ohashi A, Satoh Y, Higashizawa T, Miyata T, Ido K, Sugano K
Department of Gastroenterology, Jichi Medical School, Yakushiji, Tochigi, Japan.
Gastrointest Endosc. 2001 Jun;53(7):820-2. doi: 10.1067/mge.2001.113387.