1. Endosonography: promising method for diagnosis of extrahepatic cholestasis;Amouyal;Lancet,1989
2. Akahoshi K, Chijiiwa Y, Nakano I, Nawata H, Ogawa Y, Tanaka M, Nagai E, Tsuneyoshi M: Role of endosonography in diagnosis and staging of pancreatic cancer. Endoscopy 1995;(In Press)
3. Endoscopic ultrasonography criteria for diagnosing vascular invasion by pancreatic masses;Brugge;Endoscopy,1994
4. Endoscopic ultrasonography with a linear type echoendoscope in the evaluation of 94 patients with pancreatobiliary disease;Giovannini;Endoscopy,1994
5. Endoluminal ultrasound for the diagnosis and staging of pancreatic cancer;Grimm;Baillière’s Clin Gastroenterol,1990