@misc{indiciae1de60355b6a1,
  title = {Divalent cations and complex formation between tissue thromboplastin and factor VII.},
  author = {G Wijngaards and J Immerzeel},
  year = {1977},
  doi = {10.1016/s0006-291x(77)80029-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/901495/},
  note = {Source identifier: 901495}
}