@misc{indiciaef52e1ba96b1b,
  title = {Evaluating maternity services: how representative are data collected using a pregnancy diary?},
  author = {Nottingham Pregnancy Diary Research Group},
  year = {2001},
  doi = {10.1038/sj.ph.1900727},
  url = {https://pubmed.ncbi.nlm.nih.gov/11406775/},
  note = {Source identifier: 11406775}
}