@misc{indiciae645853055d54,
  title = {Letter: Antithrombin 3 after operation.},
  author = {M Aberg and I M Nilsson and U Hedner},
  year = {1973},
  doi = {10.1016/s0140-6736(73)92922-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4127690/},
  note = {Source identifier: 4127690}
}