@misc{indiciae199d6611f431,
  title = {Letter: Heparin-lock maintenance solutions.},
  author = {J G Marshall},
  year = {1976},
  doi = {10.1056/nejm197604222941719},
  url = {https://pubmed.ncbi.nlm.nih.gov/1256491/},
  note = {Source identifier: 1256491}
}