NISHANTH, P. S.; DEVASSY, T. V.; JOSE, T. Diagnostic utility of cancer ratio in differentiating malignant from non-malignant pleural effusions in a tertiary care centre in central Kerala. International Journal of Advances in Medicine, [S. l.], v. 9, n. 2, p. 102–106, 2022. DOI: 10.18203/2349-3933.ijam20220116. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/3344. Acesso em: 2 jan. 2026.