@misc{indiciaedf5a41c8ba7a,
  title = {Changing blood types.},
  author = {A P Varki},
  year = {1992},
  doi = {10.1056/nejm199208203270817},
  url = {https://pubmed.ncbi.nlm.nih.gov/1635581/},
  note = {Source identifier: 1635581}
}