@misc{indiciae5ad4c0db613b,
  title = {Platelet aggregation and plasma-fibrinogen.},
  author = {J R O'Brien},
  year = {1969},
  doi = {10.1016/s0140-6736(69)91569-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4180153/},
  note = {Source identifier: 4180153}
}