@misc{indiciaeac9df8735f3e,
  title = {Estimating coverage from routine information.},
  author = {M W Borgdorff and G J Walker},
  year = {1988},
  doi = {10.1177/004947558801800315},
  url = {https://pubmed.ncbi.nlm.nih.gov/3406992/},
  note = {Source identifier: 3406992}
}