@misc{indiciaed5efa9dc5e7e,
  title = {Software upgrading in a CT scanner. Influence on quantitative CT.},
  author = {J A Kalef-Ezra and A H Karantanas},
  year = {1996},
  doi = {10.1177/02841851960373p283},
  url = {https://pubmed.ncbi.nlm.nih.gov/8995454/},
  note = {Source identifier: 8995454}
}