@article{jacob_perakath_keighley_2011,  title={Surgical intervention for anorectal fistula},  volume={129},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31802011000200014},  DOI={10.1590/S1516-31802011000200014},  number={2},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Jacob, Tarun John and Perakath, Benjamin and Keighley, Michel R. B.},  year={2011},  month={Mar},  pages={120–121} }