@misc{indiciae8fd204160422,
  title = {How effective is measles immunisation.},
  author = {M D Coulter and B M Jones},
  year = {1977},
  doi = {10.1136/bmj.1.6072.1347},
  url = {https://pubmed.ncbi.nlm.nih.gov/861612/},
  note = {Source identifier: 861612}
}