@misc{indiciae33cdc74df162,
  title = {How effective is measles immunisation?},
  author = {W M Jordan},
  year = {1977},
  doi = {10.1136/bmj.2.6085.523-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/890400/},
  note = {Source identifier: 890400}
}