@misc{indiciae5e8fc37c3e03,
  title = {Mobile health services: a study in cost-effectiveness.},
  author = {G Walker and O Gish},
  year = {1977},
  doi = {10.1097/00005650-197704000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/404480/},
  note = {Source identifier: 404480}
}