@misc{indiciae8ce0f21e17d2,
  title = {Observer variability in coronary angiography.},
  author = {L M Zir},
  year = {1983},
  doi = {10.1016/0167-5273(83)90033-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/6862700/},
  note = {Source identifier: 6862700}
}