@misc{indiciaecdfb8121aa7e,
  title = {The International Normalized Prothrombin Ratio.},
  author = {L R Marshall and D J Nicol and J M Jackson},
  year = {1987},
  doi = {10.5694/j.1326-5377.1987.tb120350.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3614063/},
  note = {Source identifier: 3614063}
}