@misc{indiciae47cd7472b64c,
  title = {Developed countries could pay for hepatitis B vaccination in developing countries.},
  author = {N J Gay and W J Edmunds},
  year = {1998},
  doi = {10.1136/bmj.316.7142.1457},
  url = {https://pubmed.ncbi.nlm.nih.gov/9572767/},
  note = {Source identifier: 9572767}
}