@misc{indiciaef4044666caba,
  title = {A collaborative study to establish a U.S. reference for tissue plasminogen activator (t-PA).},
  author = {D P Beebe and L L Wood},
  year = {1991},
  doi = {10.1016/1045-1056(91)90040-q},
  url = {https://pubmed.ncbi.nlm.nih.gov/1954004/},
  note = {Source identifier: 1954004}
}