SHANMUGANATHAN, A.; G., A.; N., M.; R., R.; GANGA, N.; K., P. Correlation of grade of pulmonary artery pressure with six minutes walk distance and dyspnoea grading in group 3 pulmonary artery hypertension. International Journal of Advances in Medicine, [S. l.], v. 5, n. 2, p. 343–350, 2018. DOI: 10.18203/2349-3933.ijam20180980. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/1028. Acesso em: 24 dec. 2025.