@misc{indiciae717e34010be6,
  title = {[Changes in the lungs in progressive systemic scleroderma].},
  author = {O Georgiev and Kh Marinov and R Rashkov and P Shoshkov},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1891899/},
  note = {Source identifier: 1891899}
}