@misc{indiciaea9dc5023e0ab,
  title = {Combination vaccines: present practices and future possibilities.},
  author = {G Ada},
  year = {1994},
  doi = {10.1006/biol.1994.1049},
  url = {https://pubmed.ncbi.nlm.nih.gov/7779357/},
  note = {Source identifier: 7779357}
}