@misc{indiciae2e285aa55814,
  title = {Needle in the heart.},
  author = {I J Potek and J S Wright},
  year = {1981},
  doi = {10.1136/hrt.45.3.325},
  url = {https://pubmed.ncbi.nlm.nih.gov/7470346/},
  note = {Source identifier: 7470346}
}