@misc{indiciae50be6a68676b,
  title = {Problems extracting data from hospital maternity records.},
  author = {A Cartwright and A Jacoby and C Martin},
  year = {1987},
  doi = {10.1093/oxfordjournals.pubmed.a043940},
  url = {https://pubmed.ncbi.nlm.nih.gov/3665410/},
  note = {Source identifier: 3665410}
}