title: Ultraflex expandable metallic stents: difficulties in benign tracheal stenoses.
authors.forename: Bernd
authors.initials: B
authors.lastname: Schmidt
authors.forename: Christian
authors.initials: C
authors.lastname: Witt
mesh_terms: D006801:Humans; D008670:Metals; D015607:Stents / Q000009:adverse effects; D014135:Tracheal Stenosis / Q000628:therapy*
chemical_list: D008670:Metals