Shah, Dilawar, Aman Ullah, Nazir Shah, Salma Attaullah, and Anwar ul Haq. 2011. “DIAGNOSTIC YEILD OF PLEURAL BIOPSY IN EXUDATIVE PLEURAL EFFUSION”. Journal of Postgraduate Medical Institute 21 (4). https://www.jpmi.org.pk/index.php/jpmi/article/view/178.