@misc{indiciaec87b18bfa7cc,
  title = {PTCA in evolution: why is it so popular?},
  author = {G O Hartzler},
  doi = {10.3949/ccjm.57.2.121},
  url = {https://pubmed.ncbi.nlm.nih.gov/2323015/},
  note = {Source identifier: 2323015}
}