@misc{indiciae0a0a38c28b40,
  title = {Assessing headache severity. New directions.},
  author = {M Von Korff and W F Stewart and R B Lipton},
  year = {1994},
  url = {https://pubmed.ncbi.nlm.nih.gov/8008224/},
  note = {Source identifier: 8008224}
}