1. Gastroscopy. A review of the English and Japanese literature;Morrissey;Gastroenterology,1967
2. Morbidity and mortality in standard and flexible gastrointestinal endoscopy;Katz;Gastrointestinal Endoscopy,1969
3. Fiberduodenoscopy and endoscopic pancreatocholangiography;Oi;Gastrointestinal Endoscopy,1970
4. Per oral cannulation of the biliary tract and the pancreatic duct;Oi;Endoscopy,1970
5. Endoscopic observation of the duodenum and pancreatocholedochography using duodenal fiberscope under direct vision;Ogoshi;Gastroenterological Endoscopy (Tokyo),1970