@misc{indiciaedc69af24cabb,
  title = {Preservatives in heparin.},
  author = {B T Marsh},
  year = {1977},
  doi = {10.1016/s0140-6736(77)92813-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/67370/},
  note = {Source identifier: 67370}
}