@misc{indiciae57edd3c92776,
  title = {Technical note: a reference frame designed to use external numeric references during simulation for tumours located in the head.},
  author = {C Niël},
  year = {1993},
  doi = {10.1259/0007-1285-66-790-927},
  url = {https://pubmed.ncbi.nlm.nih.gov/8220978/},
  note = {Source identifier: 8220978}
}