@misc{indiciaebec6563e822f,
  title = {Coronary spasm: old problem, new questions.},
  author = {E A Amsterdam and D T Mason},
  year = {1981},
  doi = {10.1016/0002-8703(81)90680-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/7468432/},
  note = {Source identifier: 7468432}
}