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Paper published by Dr Bei He:
Clinical Trial Report
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Correlation of Clinical Symptoms and Sputum Inflammatory Markers with Air Pollutants in Stable COPD Patients in Beijing Area
Guo C, Sun X, Diao W, Shen N, He B
International Journal of Chronic Obstructive Pulmonary Disease 2020, 15:1507-1517
Published Date: 26 June 2020