@misc{indiciae922519d37c7b,
  title = {Questionnaire design.},
  author = {M A Sinclair},
  year = {1975},
  doi = {10.1016/0003-6870(75)90299-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/15677171/},
  note = {Source identifier: 15677171}
}