B., K. A.; L., S. B.; S., D. A. A study on echocardiography findings in severe COVID-19 pneumonia patients. International Journal of Advances in Medicine, [S. l.], v. 9, n. 4, p. 468–472, 2022. DOI: 10.18203/2349-3933.ijam20220786. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/3395. Acesso em: 1 oct. 2025.