@misc{indiciae205d734969a2,
  title = {Unexpected testosterone result for external quality assessment scheme sample.},
  author = {Albert Wolthuis and Jan de Vreeze},
  year = {2005},
  doi = {10.1373/clinchem.2004.044842},
  url = {https://pubmed.ncbi.nlm.nih.gov/15681568/},
  note = {Source identifier: 15681568}
}