@misc{indiciae4054b40c061a,
  title = {Coronary-artery spasm.},
  author = {S A Magder and D E Johnstone and V F Huckell and A G Adelman},
  year = {1977},
  doi = {10.1016/s0140-6736(77)91004-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/69925/},
  note = {Source identifier: 69925}
}