@misc{indiciae401cb21fb432,
  title = {Nonius alignment apparatus for measuring vergence.},
  author = {R J Miller},
  year = {1987},
  doi = {10.1097/00006324-198706000-00011},
  url = {https://pubmed.ncbi.nlm.nih.gov/3631202/},
  note = {Source identifier: 3631202}
}