@misc{indiciae315512558427,
  title = {Universal hepatitis B immunization. A policy challenge.},
  author = {L S Clay},
  doi = {10.1016/0091-2182(93)90035-f},
  url = {https://pubmed.ncbi.nlm.nih.gov/8331422/},
  note = {Source identifier: 8331422}
}