@misc{indiciae981a0ec6a8c8,
  title = {Prothrombin.},
  author = {K G Mann and J Elion and R J Butkowski and M Downing and M E Nesheim},
  year = {1981},
  doi = {10.1016/s0076-6879(81)80025-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/7043193/},
  note = {Source identifier: 7043193}
}