@misc{indiciae51cabc539312,
  title = {Histocompatibility antigens in progressive systemic sclerosis (scleroderma).},
  author = {N S Birnbaum and G P Rodnan and B S Rabin and S Bassion},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/604479/},
  note = {Source identifier: 604479}
}