@misc{indiciae48705d096644,
  title = {Sampling methods for tear stix tests.},
  author = {M Norn},
  year = {1992},
  doi = {10.1111/j.1755-3768.1992.tb04882.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1488883/},
  note = {Source identifier: 1488883}
}