@misc{indiciae30b4d15f3a8f,
  title = {Plasma factors for platelet aggregation.},
  author = {K Breddin and H J Krzywanek},
  year = {1971},
  doi = {10.1111/j.0954-6820.1972.tb05784.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4260813/},
  note = {Source identifier: 4260813}
}