@misc{indiciae1864f3e98384, title = {Anal fistula.}, author = {F Seow-Choen and R J Nicholls}, year = {1992}, doi = {10.1002/bjs.1800790304}, url = {https://pubmed.ncbi.nlm.nih.gov/1555083/}, note = {Source identifier: 1555083} }