@misc{indiciae40dc9841a625,
  title = {Gradation processing algorithm of digital radiological chest image.},
  author = {X Jing and J Zou and W Yan},
  year = {2001},
  doi = {10.1007/bf03190340},
  url = {https://pubmed.ncbi.nlm.nih.gov/11442098/},
  note = {Source identifier: 11442098}
}