Voinarovska, Galina, and Ervin Asanov. “Ischemic Heart Disease and Chronic Obstructive Pulmonary Disease: The Topical Problem of Comorbidity in Internal Medicine”. ScienceRise: Medical Science, no. 3 (36) (May 31, 2020): 20–24. Accessed July 17, 2024. https://journals.uran.ua/sr_med/article/view/203968.