@misc{indiciae65aae21ade98,
  title = {A method to detect proteinase activity using unprocessed X-ray films.},
  author = {A L Cheung and P Ying and V A Fischetti},
  year = {1991},
  doi = {10.1016/0003-2697(91)90037-t},
  url = {https://pubmed.ncbi.nlm.nih.gov/1804124/},
  note = {Source identifier: 1804124}
}