title: Sphincterotomy and passage of glass beads.
authors.forename: E A
authors.initials: EA
authors.lastname: Shaffer
mesh_terms: D000818:Animals; D002769:Cholelithiasis / Q000503:physiopathology*; D005704:Gallbladder / Q000503:physiopathology*; D005898:Glass; D006801:Humans; D013105:Sphincterotomy, Transduodenal