title: New techniques for direct biliary visualization: do we need them and what can be achieved?
authors.forename: Horst
authors.initials: H
authors.lastname: Neuhaus
mesh_terms: D001649:Bile Duct Diseases / Q000175:diagnosis*; D002404:Catheterization; D016145:Endoscopy, Digestive System / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male