@misc{indiciaec7ab64131076,
  title = {Trying to avoid bias in case-control and case-cohort studies.},
  author = {Paul G McDonough},
  year = {2003},
  doi = {10.1016/j.fertnstert.2003.09.003},
  url = {https://pubmed.ncbi.nlm.nih.gov/14667913/},
  note = {Source identifier: 14667913}
}