@misc{indiciae3e0eca201af7,
  title = {Placenta as an immunological barrier.},
  author = {A E Beer and J O Sio},
  year = {1982},
  doi = {10.1095/biolreprod26.1.15},
  url = {https://pubmed.ncbi.nlm.nih.gov/6175353/},
  note = {Source identifier: 6175353}
}