論文（英文）
Gotoda T, Ishikawa H, Ohnishi H, Sugano K, Kusano C, Yokoi C, Matsuyama Y, Moriyasu F. Randomized controlled trial comparing gastric cancer screening by gastrointestinal X-ray with serology for Helicobacter pylori and pepsinogens followed by gastrointestinal endoscopy. Gastric Cancer 2015; 18(3): 605-611.
Gotoda T, Ishikawa H, Ohnishi H, Sugano K, Kusano C, Yokoi C, Matsuyama Y, Moriyasu F. Randomized controlled trial comparing gastric cancer screening by gastrointestinal X-ray with serology for Helicobacter pylori and pepsinogens followed by gastrointestinal endoscopy. Gastric Cancer 2015; 18(3): 605-611.