Fitzpatrick, M F Effect of nasal or oral breathing route on upper airway resistance during sleep. [electronic resource] - The European respiratory journal Nov 2003 - 827-32 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0903-1936 Standard No.: 10.1183/09031936.03.00047903 doi Subjects--Topical Terms: AdultAirway ResistanceCross-Over StudiesFemaleHumansMaleMouth BreathingNose--physiologySingle-Blind MethodSleep--physiologySleep Apnea, Obstructive--physiopathologyWakefulness--physiology