@misc{indiciaecf2427b7d9cc,
  title = {Rugby union.},
  author = {J P R Williams},
  year = {2002},
  doi = {10.1038/sj.sc.3101431},
  url = {https://pubmed.ncbi.nlm.nih.gov/12483502/},
  note = {Source identifier: 12483502}
}