@misc{indiciaeddcbbda47fe6,
  title = {Placenta previa: avoiding false-negative diagnoses.},
  author = {F C Laing},
  year = {1981},
  doi = {10.1002/jcu.1870090303},
  url = {https://pubmed.ncbi.nlm.nih.gov/6783681/},
  note = {Source identifier: 6783681}
}