title: Oronasal obstruction, lung volumes, and arterial oxygenation.
mesh_terms: D000402:Airway Obstruction / Q000503:physiopathology*; D000403:Airway Resistance; D001158:Arteries / Q000502:physiology; D006801:Humans; D008176:Lung Volume Measurements; D009055:Mouth / Q000503:physiopathology*; D009296:Nasal Cavity / Q000503:physiopathology*; D010100:Oxygen / Q000502:physiology
chemical_list: D010100:Oxygen