@misc{indiciae933077253f48,
  title = {Puzzling options.},
  author = {P Crawford},
  year = {2006},
  doi = {10.1038/sj.bdj.4813892},
  url = {https://pubmed.ncbi.nlm.nih.gov/16902529/},
  note = {Source identifier: 16902529}
}