@misc{indiciaeb8abf49635f8,
  title = {Anismus in chronic constipation.},
  author = {D M Preston and J E Lennard-Jones},
  year = {1985},
  doi = {10.1007/bf01318172},
  url = {https://pubmed.ncbi.nlm.nih.gov/3987474/},
  note = {Source identifier: 3987474}
}