title: [An alternative tracheal cannula for patients with permanent tracheostomies].
mesh_terms: D002404:Catheterization / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D014140:Tracheotomy / Q000295:instrumentation*
chemical_list: D011138:Polytetrafluoroethylene
vernacular_title: En alternativ trakealkanyle til permanent trakeostomerede.