@misc{indiciae512971d6d855,
  title = {[Unstable angina pectoris--current pathogenetic concepts].},
  author = {N Penkov and V Sirakova and Z Zlateva},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2091388/},
  note = {Source identifier: 2091388}
}