@misc{indiciae2b2c8f6b7284,
  title = {Primary health care in developing countries.},
  author = {I Wolffers},
  year = {1991},
  doi = {10.1016/0140-6736(91)90328-m},
  url = {https://pubmed.ncbi.nlm.nih.gov/1672207/},
  note = {Source identifier: 1672207}
}