@misc{indiciae0b54c32821a2,
  title = {Standardized Schirmer tear test kit.},
  author = {G P HALBERG and C BERENS},
  year = {1961},
  doi = {10.1016/0002-9394(61)91827-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13710674/},
  note = {Source identifier: 13710674}
}