@misc{indiciaea13ad2eff57c,
  title = {Progressive systemic sclerosis; visceral manifestations in generalized scleroderma.},
  author = {W N PIPER and E B HELWIG},
  year = {1955},
  doi = {10.1001/archderm.1955.03730360041004},
  url = {https://pubmed.ncbi.nlm.nih.gov/13268058/},
  note = {Source identifier: 13268058}
}