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Comparison of multiple chronic obstructive pulmonary disease (COPD) indices in Chinese COPD patients
(The Korean Academy of Tuberculosis and Respiratory Diseases, 2018-04)
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a serious chronic condition with a global impact. Symptoms of COPD include progressive dyspnea, breathlessness, cough, and sputum production, which have a ...