@misc{indiciaea2dd62b96dba,
  title = {[Rectangular or circular x-ray cones for intraoral radiography?].},
  author = {S Eliasson and C A Fjellstrom},
  year = {1982},
  url = {https://pubmed.ncbi.nlm.nih.gov/6954706/},
  note = {Source identifier: 6954706}
}