@misc{indiciae0880ec473824,
  title = {Sensitive subgroups and normal variation in pulmonary function response to air pollution episodes.},
  author = {B Brunekreef and P L Kinney and J H Ware and D Dockery and F E Speizer and J D Spengler and B G Ferris},
  year = {1991},
  doi = {10.1289/ehp.90-1519500},
  url = {https://pubmed.ncbi.nlm.nih.gov/2050060/},
  note = {Source identifier: 2050060}
}