@misc{indiciae97d8383b0679,
  title = {[Pneumococcal vaccines. One solution to several problems?].},
  author = {J Ruiz Contreras and F García Martín},
  year = {2000},
  url = {https://pubmed.ncbi.nlm.nih.gov/11003895/},
  note = {Source identifier: 11003895}
}