@misc{indiciaee5ec749d5be2,
  title = {Kussmaul's sign: second protest.},
  author = {G H Spodick},
  year = {1977},
  doi = {10.1056/nejm197704072961425},
  url = {https://pubmed.ncbi.nlm.nih.gov/840291/},
  note = {Source identifier: 840291}
}