@misc{indiciae31521370cb35,
  title = {Progressive systemic sclerosis subgroups: variable pulmonary features.},
  author = {V J Taormina and W T Miller and W B Gefter and D M Epstein},
  year = {1981},
  doi = {10.2214/ajr.137.2.277},
  url = {https://pubmed.ncbi.nlm.nih.gov/6789634/},
  note = {Source identifier: 6789634}
}