@misc{indiciae290cc044da74,
  title = {Asthma and open cast mining.},
  author = {S J O'Brien and R S Bhopal and B A Harkis},
  year = {1992},
  doi = {10.1136/bmj.305.6858.888-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/1422419/},
  note = {Source identifier: 1422419}
}