Parajuli, A.; Pandey, N.; Jha, S. K.; Dahal, B.; Gautam, S. A Study of Clinical Presentation, Precipitating Factors, and Predictors of Severity Among Patients With Acute Exacerbation of COPD Attending the Emergency Department of a Tertiary Care Center. JGMC-Nepal 2026, 19, 18-22.