@misc{indiciae31c2718fa919,
  title = {The evolution of maternal birthing position.},
  author = {L Dundes},
  year = {1987},
  doi = {10.2105/ajph.77.5.636},
  url = {https://pubmed.ncbi.nlm.nih.gov/3551639/},
  note = {Source identifier: 3551639}
}