@misc{indiciae4a0c3c3919a8,
  title = {Letter: Rubella immunization.},
  author = {L H Johns},
  year = {1976},
  doi = {10.1001/jama.235.22.2389a},
  url = {https://pubmed.ncbi.nlm.nih.gov/946637/},
  note = {Source identifier: 946637}
}