@misc{indiciaeb1802303a421,
  title = {Aphotographic method for measuring the mean retinal circulation time using fluorescein.},
  author = {J B Hickam and R Frayser},
  year = {1965},
  url = {https://pubmed.ncbi.nlm.nih.gov/4953505/},
  note = {Source identifier: 4953505}
}