1. High speed rotating scanner for transgastric sonography;Hisanaga;AJT,1980
2. Ultrasonic endoscope;DiMagno;Lancet,1980
3. Endoscopic retrograde cholangiopancreatography (ERCP) in the diagnosis of pancreatic cancer;Nakajima,1980
4. Clinical evaluation of endoscopic ultrasonography (EUS);Yasuda;Gastroenterol Endosc,1984
5. Anatomical pathological aspects in ultrasonic endoscopy for G-I tract;Tanaka;Scand J Gastroenterol,1984