@misc{indiciae03c81b2e4e5f,
  title = {Blocked epidural filter.},
  author = {V A Clark and J Dickson},
  year = {1993},
  doi = {10.1111/j.1365-2044.1993.tb07089.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8323003/},
  note = {Source identifier: 8323003}
}