P. S., Sony, Vinu C. V., Suresh Kumar J., and Kishore Lal. “Thoracic Empyema: Clinical Course and Management in Trivandrum Medical College”. International Journal of Research in Medical Sciences 9, no. 9 (August 25, 2021): 2681–2686. Accessed October 14, 2025. https://www.msjonline.org/index.php/ijrms/article/view/9808.