@misc{indiciae952895b06b43,
  title = {Reliability and concurrent validity of headache questionnaire data.},
  author = {F Andrasik and K A Holroyd},
  year = {1980},
  doi = {10.1111/j.1526-4610.1980.hed2001044.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7356598/},
  note = {Source identifier: 7356598}
}