@misc{indiciae6ab3db6fe415,
  title = {Overtube separation.},
  author = {M A Jeffries and J M Scheiman},
  year = {1998},
  doi = {10.1016/s0016-5107(98)70238-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9609454/},
  note = {Source identifier: 9609454}
}