1. Sushruta's Sushrut Samhita;Sharma,1938
2. Procedures used in the treatment of complicated fistulas;Laird;Am J Surg,1948
3. Fibrin occlusion of fistulas postoperatively;Hedelin;Surg Gynecol Obstet,1982
4. Fibrin adhesive in the treatment of perineal fistulas;Hjortrup;Dis Colon Rectum,1991