@misc{indiciae907418bc72dc,
  title = {Coronary spasm.},
  author = {R H Helfant},
  year = {1979},
  doi = {10.1016/0002-9149(79)90207-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/495490/},
  note = {Source identifier: 495490}
}