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Research Article: The Relationship of Fractional Exhaled Nitric Oxide in Patients with AECOPD

Date Published: 2023-12-21

Introduction:
Chronic obstructive pulmonary disease (COPD) is a common respiratory disease characterized by chronic airway inflammation. Acute exacerbations accelerate the deterioration of lung function in COPD patients, leading to increased mortality and economic burden. Therefore, it is essential to evaluate the severity of COPD at an early stage. At present, the gold standard for clinical evaluation and prognosis of COPD is still the pulmonary function test. However, it does not provide reliable treatment guidance and…

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