@misc{indiciae4aef82193304,
  title = {Sensitivity and precision of activated partial thromboplastin time (APTT) methods. A multicenter study.},
  author = {N Refsum and D Collen and H C Godal and T Janson and P M Mannucci and I M Nilsson and C C Gilhuus-Moe},
  year = {1978},
  doi = {10.1111/j.1600-0609.1978.tb01559.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/625634/},
  note = {Source identifier: 625634}
}