@misc{indiciaea2715e217fc1,
  title = {Smallpox vaccination and pregnancy.},
  author = {M Luisi},
  year = {1977},
  doi = {10.1016/0002-9378(77)90227-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/879232/},
  note = {Source identifier: 879232}
}