@misc{indiciae3352c23f676f,
  title = {Retroperitoneal fibrosis.},
  author = {N Ahsan and A A Choudhury and A Berger},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2190458/},
  note = {Source identifier: 2190458}
}