@misc{indiciae576b16ef8247,
  title = {Letter: Recording VPB's: inefficient methods.},
  author = {A L Barnert},
  year = {1975},
  doi = {10.1056/nejm197505292922218},
  url = {https://pubmed.ncbi.nlm.nih.gov/47612/},
  note = {Source identifier: 47612}
}