@misc{indiciaefbe9224e89f1,
  title = {Multiple marker second trimester serum screening for pre-eclampsia.},
  author = {N J Wald and J K Morris},
  year = {2001},
  doi = {10.1136/jms.8.2.65},
  url = {https://pubmed.ncbi.nlm.nih.gov/11480445/},
  note = {Source identifier: 11480445}
}