@misc{indiciae58190d8e5ba4,
  title = {Quantitative tear ferning. Methodologic and experimental investigations.},
  author = {M Norn},
  year = {1988},
  doi = {10.1111/j.1755-3768.1988.tb04012.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3389095/},
  note = {Source identifier: 3389095}
}