@misc{indiciaed8ebcdbf62e1,
  title = {Observational versus randomised trial evidence.},
  author = {Kay-Tee Khaw and Nick Day and Sheila Bingham and Nick Wareham},
  doi = {10.1016/s0140-6736(04)16924-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/15337392/},
  note = {Source identifier: 15337392}
}