@misc{indiciae6ec06748cb83,
  title = {[Radiographic symptoms in progressive scleroderma].},
  author = {W Schulte-Brinkmann and W Pöttgen},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5568999/},
  note = {Source identifier: 5568999}
}