Use of double nasopharyngeal airways in anesthesia.
D000768:Anesthesia, General; D001784:Blood Gas Analysis; D006400:Hematocrit; D006801:Humans; D007440:Intubation / Q000009:adverse effects / Q000295:instrumentation; D007442:Intubation, Intratracheal; D009305:Nasopharynx; D010100:Oxygen; D012119:Respiration; D012220:Rhinitis / Q000209:etiology
D010100:Oxygen