@misc{indiciae0f15f5854dcf,
  title = {Painkiller headache.},
  author = {Stephen D Silberstein and K M A Welch},
  year = {2002},
  doi = {10.1212/wnl.59.7.972},
  url = {https://pubmed.ncbi.nlm.nih.gov/12370449/},
  note = {Source identifier: 12370449}
}