title: Assessment of difficult endotracheal intubation in the prehospital setting.
authors: F S
authors: FS
authors: Xue
authors: J H
authors: JH
authors: Liu
authors: X
authors: X
authors: Liao
authors: Y J
authors: YJ
authors: Yuan
authors: Q
authors: Q
authors: Wang
mesh_terms: D002983:Clinical Competence / Q000592:standards*; D004630:Emergencies; D004632:Emergency Medical Services / Q000592:standards*; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000379:methods*; D008297:Male; D010820:Physicians / Q000592:standards*