Errey, A. K., S. K. Singh, N. Sachan, and V. Singh. “Assessment of Outcome and Complications of Ultrasonography Guided Pigtail Catheter Drainage in Management of Liver Abscess”. International Surgery Journal, vol. 7, no. 6, May 2020, pp. 1825-9, doi:10.18203/2349-2902.isj20202390.