@misc{indiciaec3bbea9918a2,
  title = {SURVEYPLUS--a review of an updated computer program.},
  author = {R J Anderson},
  year = {1988},
  doi = {10.1038/sj.bdj.4806362},
  url = {https://pubmed.ncbi.nlm.nih.gov/3422813/},
  note = {Source identifier: 3422813}
}