@misc{indiciaedd337b0c23bd,
  title = {A perspective on combination vaccines.},
  author = {N A Halsey},
  year = {1998},
  doi = {10.1097/00006454-199807000-00016},
  url = {https://pubmed.ncbi.nlm.nih.gov/9686736/},
  note = {Source identifier: 9686736}
}