Fahad Usman, Tahir Mukhtar Sayed, Asim Maqsood, Fozia Shamshad, Tayyaba Anis Chaudhry, and Aysha Mushtaq. 2022. “Investigation of the Clinical Characteristics of Empyema Thoracis Patients at Tertiary Care Facility”. Pakistan Journal of Chest Medicine 28 (4):478-83. https://doi.org/10.1996/pjcm.v28i4.805.