title: A reconsideration of three axes alignment theory and sniffing position.
authors.forename: Hsiu-chin
authors.initials: HC
authors.lastname: Chou
authors.forename: Tzu-lang
authors.initials: TL
authors.lastname: Wu
mesh_terms: D005931:Glottis / Q000033:anatomy & histology; D006801:Humans; D007442:Intubation, Intratracheal / Q000379:methods*; D007828:Laryngoscopy / Q000379:methods*; D007830:Larynx / Q000033:anatomy & histology; D009055:Mouth / Q000033:anatomy & histology; D011187:Posture / Q000502:physiology*