@misc{indiciae287b50b60eab,
  title = {Matrix effects and accuracy assessment. Identifying matrix-sensitive methods from real-time proficiency testing data.},
  author = {N S Lawson and T L Williams and T Long},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8466404/},
  note = {Source identifier: 8466404}
}