Helicobacter pylori -negative gastric and duodenal ulcers
Hideharu Tsuji, Yoshihiro Kohli, Shinji Fukumitsu, Kiyoshi Morita, Hiroto Kaneko, Tohru Ohkawara, Masahito Minami, Kazushige Ueda, Yoshihiko Sawa, Haruki Matsuzaki, Osamu Morinaga, Yasuo Ohkawara
Abstract