Rohit, D. K., S. Jain, and G. Pandey. “Effectiveness of Ligation of Intersphincteric Fistula Tract (LIFT) in the Management of Fistulas in Ano”. International Surgery Journal, vol. 4, no. 12, Nov. 2017, pp. 3951-5, doi:10.18203/2349-2902.isj20175158.