@misc{indiciaea3afcf30d778,
  title = {MMR--Separate administration-has it been done?},
  author = {Robert Leitch and Neal Halsey and Susan L Hyman},
  year = {2002},
  doi = {10.1542/peds.109.1.172},
  url = {https://pubmed.ncbi.nlm.nih.gov/11773568/},
  note = {Source identifier: 11773568}
}