Study of Cardiac Dysfunction by Echocardiography in Patients of Chronic Obstructive Pulmonary Disease Classified on the Basis of GOLD Guideline 2024. AAMS Journal, [S. l.], v. 1, n. Issue 1- May-, 2026. Disponível em: https://journal.aamsjournal.com/index.php/files/article/view/3. Acesso em: 4 sep. 2026.