@misc{indiciaed53768ba97dc,
  title = {Operant therapy for headaches.},
  author = {R S Fowler},
  year = {1975},
  doi = {10.1111/j.1526-4610.1975.hed1501063.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1132992/},
  note = {Source identifier: 1132992}
}