Dilshodovna, Boltakulova Sarvinoz. “Assessment of the Prevalence of Unstable Angina in Patients With Chronic Obstructive Heart Disease in an Ectopic Setting”. INTERNATIONAL JOURNAL OF HEALTH SYSTEMS AND MEDICAL SCIENCES 1, no. 6 (December 7, 2022): 16–20. Accessed May 5, 2024. https://inter-publishing.com/index.php/IJHSMS/article/view/555.