by Mitooka, Hideki, Fujimori, Takahiro, Ohno, Shigekazu, Morimoto, Shinsuke, Nakashima, Takatosi, Ohmoto, Akiyosi, Okano, Hiroyuki, Miyamoto, Masaki, Oh, Toumei, Saeki, Susumu
Published in Gastrointestinal endoscopy (01.05.1992)