“…The introduction of fibre-optic endoscopy (Hirschowitz, Curtiss, Peters, and Pollard 1958) and the subsequent development of a cannulating endoscope (Takagi, Go, Sugiura, Futagawa, and Hioki, 1969;Oi, Ichioka, and Takemoto, 1969;Oi, 1970;Takagi, Ikeda, Nakayama et al, 1970) have led to the widespread use of endoscopic retrograde choledochopancreatography (ERCP) in the diagnosis and management of pancreatic and biliary tract disease (Qi, 1970;Oi, Takemoto, and Nakayama, 1970;Oi, Kobayashi, and Kono, 1970;Takagi et al, 1970;Ogoshi, Tobita, and Hara, 1970;Fujita, Soma, and Kidokoro, 1970;Demling and Classen, 1970;Kasugai, Kuno, Aoki et al, 1971;Kobayashi, Tanaka, and Tsuneoka, 1971;Salmon, Brown, Htut, Burwood, and Read, 1971a;Cotton, Salmon, Blumgart, Burwood, Davies, Lawrie, Pierce, and Read, 1972;Blumgart, Salmon, Cotton, Davies, Burwood, Beales, Lawrie, Skirving, and Read, 1972;Kasugai, Kuno, Kobayashi, and Hattori, 1972;Burwood, Davies, Lawrie, Blumgart, and Salmon, 1973;. Clinically ERCP is of value both in suspected and in known pancreatic disease.…”