@misc{indiciae9b00580ef6ca,
  title = {Guard for intra-anal-plug electrode.},
  author = {E S Glen},
  year = {1969},
  doi = {10.1016/s0140-6736(69)90091-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4184241/},
  note = {Source identifier: 4184241}
}