@misc{indiciaeb938a1120e95,
  title = {Registry based perinatal research.},
  author = {P Bergsjø and L M Irgens and R T Lie},
  year = {2000},
  doi = {10.1034/j.1600-0412.2000.079006433.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10857865/},
  note = {Source identifier: 10857865}
}