@misc{indiciaefc8382f1073d,
  title = {Development and analysis of observational data bases.},
  author = {T H Lee and L Goldman},
  year = {1989},
  doi = {10.1016/0735-1097(89)90161-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2768729/},
  note = {Source identifier: 2768729}
}