@misc{indiciae8c8de532488e,
  title = {An ethmoidal tumour treated with methotrexate.},
  author = {I Frew},
  year = {1966},
  doi = {10.1017/s002221510006607x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4957702/},
  note = {Source identifier: 4957702}
}