@misc{indiciae6e247f5721db,
  title = {Letter: Association vs causation.},
  author = {M R Zavon},
  year = {1976},
  doi = {10.1001/jama.235.17.1841c},
  url = {https://pubmed.ncbi.nlm.nih.gov/56467/},
  note = {Source identifier: 56467}
}