@misc{indiciaed6f0e701e4df,
  title = {External quality assurance.},
  author = {J Middle},
  year = {1998},
  doi = {10.1177/000456329803500412},
  url = {https://pubmed.ncbi.nlm.nih.gov/9681060/},
  note = {Source identifier: 9681060}
}