@misc{indiciae30c269b7b874,
  title = {Further variant patterns within Prinzmetal angina pectoris.},
  author = {W A Kossowsky and B D Mohr and D M Summers and A F Lyon},
  year = {1974},
  doi = {10.1378/chest.66.6.622},
  url = {https://pubmed.ncbi.nlm.nih.gov/4547694/},
  note = {Source identifier: 4547694}
}