@misc{indiciaefabf579c34dc,
  title = {Pterygium: a geographical study.},
  author = {R Detels and S P Dhir},
  year = {1967},
  doi = {10.1001/archopht.1967.00980030487014},
  url = {https://pubmed.ncbi.nlm.nih.gov/6046844/},
  note = {Source identifier: 6046844}
}