@misc{indiciae150f9c97304d,
  title = {Headache angina.},
  author = {R A Blacky and J T Rittelmeyer and M R Wallace},
  year = {1987},
  doi = {10.1016/0002-9149(87)90394-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/3661446/},
  note = {Source identifier: 3661446}
}