Lu, Y., Y. Han, S. Cheng, and X. Zhang. “Comparison of Effectiveness Between Two Treatment Methods for Patients With Anal Fistula and Their Impact on Serum IL-6 and SAA”. Journal of the Pakistan Medical Association, vol. 75, no. 8, Jan. 2025, pp. 1224-8, doi:10.47391/JPMA.20663.