@misc{indiciae524d6de7c76d,
  title = {Group theory implications for changing health patterns.},
  author = {R F Stewart and J A Irving},
  year = {1969},
  doi = {10.2105/ajph.59.10.1894},
  url = {https://pubmed.ncbi.nlm.nih.gov/5388017/},
  note = {Source identifier: 5388017}
}