The Prevalence and Risk Factors of Cardiovascular Comorbidity in Patients with Severe and Very Severe COPD. Global Journal of Medical Research, [S. l.], v. 16, n. 15, p. 7–13, 2016. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/. Acesso em: 25 oct. 2026.