@misc{indiciae2c46dc78440f,
  title = {Sequential testing for headache complaints.},
  author = {R G Sherrill},
  year = {1974},
  doi = {10.1080/00325481.1974.11713846},
  url = {https://pubmed.ncbi.nlm.nih.gov/4546909/},
  note = {Source identifier: 4546909}
}