@misc{indiciaeac5f3df0a04d,
  title = {Ergotamine headache.},
  author = {P G Andersson},
  year = {1975},
  doi = {10.1111/j.1526-4610.1975.hed1502118.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1150427/},
  note = {Source identifier: 1150427}
}