P. S., S., C. V., V., J., S.K. and Lal, K. 2021. Thoracic empyema: clinical course and management in Trivandrum Medical College. International Journal of Research in Medical Sciences. 9, 9 (Aug. 2021), 2681–2686. DOI:https://doi.org/10.18203/2320-6012.ijrms20213407.