Mandal, P. P., S. Sarker, and K. Mandal. “Magnetic Resonance Imaging Classification of Perianal Fistula and Its Surgical Correlation: A Prospective Observational Study”. International Surgery Journal, vol. 13, no. 11, Oct. 2026, pp. 2181-5, doi:10.18203/2349-2902.isj20263848.