“COVID-19 Morbidity and Its Influence on Death Rate in Patients With Pulmonary Arterial and Chronic Thromboembolic Pulmonary Hypertension”. Ukrainian Journal of Cardiology 30, no. 3-4 (September 18, 2023): 29–37. Accessed May 15, 2024. https://ucardioj.com.ua/index.php/UJC/article/view/330.