@misc{indiciae40c58b300506,
  title = {Refractory angina. I.},
  author = {A M Master and H L Jaffe},
  year = {1968},
  doi = {10.1080/00325481.1968.11693140},
  url = {https://pubmed.ncbi.nlm.nih.gov/5638776/},
  note = {Source identifier: 5638776}
}