@misc{indiciaeaf4ebea72096,
  title = {[Active immunization in childhood].},
  author = {F HANSEN},
  year = {1954},
  doi = {10.1055/s-0028-1115449},
  url = {https://pubmed.ncbi.nlm.nih.gov/13161502/},
  note = {Source identifier: 13161502}
}