title: [A clinical investigation on a series of 134 cases of non-visualized gallbladder on endoscopic retrograde cholangiogram (author's transl)].
mesh_terms: D000328:Adult; D000368:Aged; D001660:Biliary Tract Diseases / Q000000981:diagnostic imaging / Q000601:surgery; D002758:Cholangiography / Q000379:methods; D002765:Cholecystography; D004724:Endoscopy; D005260:Female; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged