@misc{indiciae2d74ff1d6b64,
  title = {Does single-file botox injection really work for primary headache?},
  author = {Andrew Blumenfeld},
  year = {2004},
  doi = {10.1111/j.1526-4610.2004.04158\_2.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/15330839/},
  note = {Source identifier: 15330839}
}