@misc{indiciae803d9e1cb2b0,
  title = {Fixation problems in fundus photography.},
  author = {S S Hayreh and T J Ffytche},
  year = {1970},
  doi = {10.1136/bjo.54.7.496},
  url = {https://pubmed.ncbi.nlm.nih.gov/5433356/},
  note = {Source identifier: 5433356}
}