@misc{indiciae118556224c2f,
  title = {Persistent occiput posterior presentation--a clinical problem.},
  author = {M Gardberg and M Tuppurainen},
  year = {1994},
  doi = {10.3109/00016349409013392},
  url = {https://pubmed.ncbi.nlm.nih.gov/8304024/},
  note = {Source identifier: 8304024}
}