[Peroral cholangiopancreatoscopy (PCPS): its development and clinical application].
D001659:Biliary Tract; D001660:Biliary Tract Diseases / Q000175:diagnosis; D004724:Endoscopy / Q000379:methods*; D005336:Fiber Optic Technology / Q000379:methods; D006801:Humans; D008722:Methods; D010179:Pancreas; D010182:Pancreatic Diseases / Q000175:diagnosis