@misc{indiciaeefb2c2b14bf9,
  title = {Questionnaire development: 2. Validity and reliability.},
  author = {L Del Greco and W Walop and R H McCarthy},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3828925/},
  note = {Source identifier: 3828925}
}