@misc{indiciae3e3a87770610,
  title = {Coagulation factor analysis in patients on long-term anticoagulation.},
  author = {H A Perkins and R L Biben},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5451608/},
  note = {Source identifier: 5451608}
}