@misc{indiciae7075137d8cfb,
  title = {Egg-shell silicotic calcification causing bronchoesophageal fistula.},
  author = {B Carasso and C Couropmitree and R Heredia},
  year = {1973},
  doi = {10.1164/arrd.1973.108.6.1384},
  url = {https://pubmed.ncbi.nlm.nih.gov/4751723/},
  note = {Source identifier: 4751723}
}