@misc{indiciaef9899c97a64a,
  title = {Letter: Antisubstitution laws.},
  author = {R J Herbert},
  year = {1973},
  doi = {10.1001/jama.226.8.1012b},
  url = {https://pubmed.ncbi.nlm.nih.gov/4800329/},
  note = {Source identifier: 4800329}
}