title: Evaluating a patient's airway.
authors.affiliation: Department of Anesthesiology/Neurosurgery Imam Khomeini Hospital Tehran, Iran.
authors.forename: Zahid Hussain
authors.initials: ZH
authors.lastname: Khan
authors.forename: Arash
authors.initials: A
authors.lastname: Kashfi
mesh_terms: D006801:Humans; D007442:Intubation, Intratracheal / Q000145:classification*; D008046:Lip / Q000033:anatomy & histology; D009055:Mouth / Q000033:anatomy & histology*