@misc{indiciae6503758838b1,
  title = {"Planning" articles.},
  author = {H R Mason},
  year = {1973},
  doi = {10.2105/ajph.63.8.668},
  url = {https://pubmed.ncbi.nlm.nih.gov/4719531/},
  note = {Source identifier: 4719531}
}