title: Is seeing believing?
authors.forename: Gregory B
authors.initials: GB
authors.lastname: Haber
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde; D019160:Endosonography; D042882:Gallstones / Q000000981:diagnostic imaging*; D006801:Humans; D016717:Sphincterotomy, Endoscopic