@misc{indiciae0759b69642ba,
  title = {[Experience with a simple substraction method in x-ray diagnosis].},
  author = {J Neumann and K J Neumärker},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5772276/},
  note = {Source identifier: 5772276}
}