
Impact of the COVID-19 Pandemic on ACO Prevalence Among AECOPD Patients (2019-2023) and Clinical Characteristics by ...
Introduction Chronic Obstructive Pulmonary Disease (COPD) is a persistent airflow obstruction due to airway abnormalities and/or alveolar abnormalities.1 Asthma-COPD Overlap (ACO) has characteristics associated with asthma and COPD and has a higher …