@misc{indiciaeb72a7ceb26e5,
  title = {Medical geography: its methods and objectives.},
  author = {J M May},
  year = {1977},
  doi = {10.1016/0037-7856(77)90157-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/579478/},
  note = {Source identifier: 579478}
}