title: CPAP reduces risk of death in people with COPD and sleep apnea.
mesh_terms: D045422:Continuous Positive Airway Pressure; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000401:mortality* / Q000628:therapy*; D012307:Risk Factors; D012891:Sleep Apnea Syndromes / Q000401:mortality* / Q000628:therapy*