@misc{indiciaed6ff96778e72,
  title = {Observational data do not establish cause and effect.},
  author = {N B Watts},
  year = {2001},
  doi = {10.1001/archinte.161.5.772},
  url = {https://pubmed.ncbi.nlm.nih.gov/11231718/},
  note = {Source identifier: 11231718}
}