@misc{indiciae809e38ce7abc,
  title = {Antigen-biological-activity ratio for factor VIII.},
  author = {C Hougie and R Sargeant},
  year = {1973},
  doi = {10.1016/s0140-6736(73)90773-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4120690/},
  note = {Source identifier: 4120690}
}