@misc{indiciae8a2a47080a2d,
  title = {Combination vaccines.},
  author = {R W Ellis and K R Brown},
  year = {1997},
  doi = {10.1016/s1054-3589(08)60077-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/9160121/},
  note = {Source identifier: 9160121}
}