@misc{indiciaedf811b868413,
  title = {BCG vaccination in Spain.},
  author = {P de March-Ayuela},
  year = {1993},
  doi = {10.1016/0140-6736(93)90184-i},
  url = {https://pubmed.ncbi.nlm.nih.gov/8094147/},
  note = {Source identifier: 8094147}
}