V, S. A., and P. S. G. “Study on Diagnostic Approach for Pleural Effusion With Varied Etiology: Study on Diagnostic Approach for Pleural Effusion With Varied Etiology”. National Journal of Integrated Research in Medicine, vol. 8, no. 4, Aug. 2017, pp. 63-67, doi:10.70284/njirm.v8i4.1285.