@misc{indiciae576f1e8addd6,
  title = {Performance guidelines for the partial thromboplastin time test.},
  author = {J A Koepke},
  doi = {10.1007/bf02871826},
  url = {https://pubmed.ncbi.nlm.nih.gov/2633303/},
  note = {Source identifier: 2633303}
}