@misc{indiciaed230dfe15891,
  title = {Statistical problems.},
  author = {G Davey Smith and M Egger},
  year = {1994},
  doi = {10.1136/bmj.308.6935.1025},
  url = {https://pubmed.ncbi.nlm.nih.gov/8167517/},
  note = {Source identifier: 8167517}
}