@misc{indiciae3423998dda00,
  title = {Heavenly rings.},
  author = {I R Schwab},
  year = {2003},
  doi = {10.1136/bjo.87.6.681},
  url = {https://pubmed.ncbi.nlm.nih.gov/12770953/},
  note = {Source identifier: 12770953}
}