Thrombosis of the right atrium in acute massive pulmonary embolism: a clinical case of effective thrombolysis by alteplase in a patient with unstable hemodynamics. UJC [Internet]. 2022 Feb. 1 [cited 2024 Nov. 24];28(6):20-7. Available from: https://ucardioj.com.ua/index.php/UJC/article/view/287