title: Mouth opening, craniocervical extension, and laryngoscopic positioning.
authors.forename: George A
authors.initials: GA
authors.lastname: Mashour
mesh_terms: D002574:Cervical Vertebrae / Q000033:anatomy & histology; D006257:Head / Q000033:anatomy & histology; D006801:Humans; D007828:Laryngoscopy / Q000379:methods*; D009055:Mouth / Q000033:anatomy & histology*