@misc{indiciae8f094ac01150,
  title = {Selective health care for developing countries.},
  author = {R H Henderson and J Keja},
  year = {1980},
  doi = {10.1056/nejm198003273021321},
  url = {https://pubmed.ncbi.nlm.nih.gov/7354803/},
  note = {Source identifier: 7354803}
}