Applied oxygen therapy.
D002404:Catheterization / Q000295:instrumentation; D004864:Equipment and Supplies; D006801:Humans; D007040:Hypoventilation / Q000209:etiology; D008397:Masks; D008722:Methods; D009666:Nose; D010102:Oxygen Inhalation Therapy / Q000009:adverse effects / Q000295:instrumentation*; D010313:Partial Pressure; D001261:Pulmonary Atelectasis / Q000209:etiology; D014140:Tracheotomy / Q000295:instrumentation