@misc{indiciae649c1052e22f,
  title = {Radon: is it a problem?},
  author = {B L Hart and F A Mettler and N H Harley},
  year = {1989},
  doi = {10.1148/radiology.172.3.2549562},
  url = {https://pubmed.ncbi.nlm.nih.gov/2549562/},
  note = {Source identifier: 2549562}
}