@misc{indiciae2822d0d9a534,
  title = {Six cities revisited.},
  author = {John M Bruner},
  year = {2004},
  doi = {10.1056/nejm200404083501521},
  url = {https://pubmed.ncbi.nlm.nih.gov/15071138/},
  note = {Source identifier: 15071138}
}