@misc{indiciaeb487b1d02f88,
  title = {'Use your Yellow Card'.},
  author = {N J Knott},
  year = {1989},
  doi = {10.1038/sj.bdj.4806910},
  url = {https://pubmed.ncbi.nlm.nih.gov/2775583/},
  note = {Source identifier: 2775583}
}