@misc{indiciaeae9d2f4a00de,
  title = {[Active immunization in childhood].},
  author = {F HANSEN},
  year = {1954},
  doi = {10.1055/s-0028-1115460},
  url = {https://pubmed.ncbi.nlm.nih.gov/13161515/},
  note = {Source identifier: 13161515}
}