@misc{indiciae09c5ea3eb9a2,
  title = {Class list},
  author = {C Douglas},
  year = {1999},
  doi = {10.1136/bmj.318.7195.1429a},
  url = {https://pubmed.ncbi.nlm.nih.gov/10334785/},
  note = {Source identifier: 10334785}
}