The emperor's new airway.
Walls
R
R
D000402:Airway Obstruction / Q000601:surgery / Q000628:therapy*; D002404:Catheterization; D003413:Cricoid Cartilage / Q000033:anatomy & histology / Q000601:surgery; D004867:Equipment Design; D006801:Humans; D013957:Thyroid Cartilage / Q000033:anatomy & histology / Q000601:surgery; D014140:Tracheotomy / Q000295:instrumentation*