@misc{indiciaecfad6379b357,
  title = {Variant angina pectoris. The controversies continue.},
  author = {S J Shubrooks},
  year = {1978},
  doi = {10.1378/chest.73.6.781},
  url = {https://pubmed.ncbi.nlm.nih.gov/306912/},
  note = {Source identifier: 306912}
}