@misc{indiciae9abb71af744b,
  title = {Cervical tension during labor.},
  author = {L Lindgren and H Siener},
  year = {1966},
  doi = {10.1016/0002-9378(66)90127-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5939263/},
  note = {Source identifier: 5939263}
}