@misc{indiciae3fdcc6eb3842,
  title = {Blood groups and natural selection.},
  author = {P M SHEPPARD},
  year = {1959},
  doi = {10.1093/oxfordjournals.bmb.a069737},
  url = {https://pubmed.ncbi.nlm.nih.gov/13651678/},
  note = {Source identifier: 13651678}
}