Potabashnii , V., O. Kniazieva, and O. . Markova. “Problems of Diagnosis and Treatment of Chronic Ischaemic Heart Disease Combined With Chronic Obstructive Pulmonary Disease According to Retrospective Analysis”. Medicni Perspektivi, vol. 26, no. 2, June 2021, pp. 72-79, doi:10.26641/2307-0404.2021.2.234517.