Nishanth, P. S., Devassy, T. V., & Jose, T. (2022). 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, 9(2), 102–106. https://doi.org/10.18203/2349-3933.ijam20220116