@misc{indiciae23407e1849be,
  title = {The enduring value of Killip classification.},
  author = {S W Werns and E R Bates},
  year = {1999},
  doi = {10.1053/hj.1999.v137.93200},
  url = {https://pubmed.ncbi.nlm.nih.gov/9924153/},
  note = {Source identifier: 9924153}
}