Clearing the airway--mouth gags, wedges and openers.
Ball
C
C
Australian and New Zealand College of Anaesthetists.
Westhorpe
R
R
D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans