@misc{indiciae30e230a7c202,
  title = {Maternal immunisation in developing countries.},
  author = {Brian Greenwood},
  year = {2003},
  doi = {10.1016/s0264-410x(03)00346-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/12850355/},
  note = {Source identifier: 12850355}
}