title: [Application of metal tracheal cannula in the percutaneous tracheotomy].
authors.forename: Aiping
authors.initials: A
authors.lastname: Chen
authors.forename: Feng
authors.initials: F
authors.lastname: Zhong
authors.forename: Li'e
authors.initials: L
authors.lastname: Yin
mesh_terms: D057785:Catheters; D006801:Humans; D008670:Metals; D014132:Trachea; D014140:Tracheotomy
chemical_list: D008670:Metals