@misc{indiciaeb2e7bef5c6ef,
  title = {Accuracy of postal questionnaires.},
  author = {P J Robb and D Johnston},
  year = {1990},
  doi = {10.1017/s0022215100111843},
  url = {https://pubmed.ncbi.nlm.nih.gov/2179440/},
  note = {Source identifier: 2179440}
}