Jagoda Stojkovikj (2016) “The Prevalence and Risk Factors of Cardiovascular Comorbidity in Patients with Severe and Very Severe COPD”, Global Journal of Medical Research, 16(F4), pp. 7–13. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/1143 (Accessed: 4 May 2024).