@misc{indiciaeb11cfdc40fdf,
  title = {Improved contrast in special procedures using a rotating aperture wheel (RAW) device.},
  author = {S Rudin and D R Bednarek},
  year = {1980},
  doi = {10.1148/radiology.137.2.7433683},
  url = {https://pubmed.ncbi.nlm.nih.gov/7433683/},
  note = {Source identifier: 7433683}
}