@misc{indiciaeb1c8ccb24d3e,
  title = {Button sequestrum revisited.},
  author = {S D Sholkoff and F Mainzer},
  year = {1971},
  doi = {10.1148/100.3.649},
  url = {https://pubmed.ncbi.nlm.nih.gov/5567327/},
  note = {Source identifier: 5567327}
}