@misc{indiciaeb1af431b6a73,
  title = {Some faults with external and internal quality control programs.},
  author = {D B Tonks},
  year = {1982},
  doi = {10.1016/s0009-9120(82)90674-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/7094289/},
  note = {Source identifier: 7094289}
}