title: Letter: Percutaneous transhepatic cholangiography.
mesh_terms: D001660:Biliary Tract Diseases / Q000175:diagnosis*; D002758:Cholangiography; D003937:Diagnosis, Differential; D006801:Humans; D010535:Laparoscopy; D008107:Liver Diseases / Q000175:diagnosis*; D008722:Methods