IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-3-46945 Original Research Paper Diagnostic Utility Of Cancer Ratio In Differentiating Malignant Pleural Effusion From Non-Malignant Exudative Pleural Effusion. T.Ganesh Dr. Dr. R.Velraj Dr. March 2023 12 3 01 02