@misc{indiciae4d86c94e82f7,
  title = {Normal human tear pH by direct measurement.},
  author = {M B Abelson and I J Udell and J H Weston},
  year = {1981},
  doi = {10.1001/archopht.1981.03930010303017},
  url = {https://pubmed.ncbi.nlm.nih.gov/7469869/},
  note = {Source identifier: 7469869}
}