Screening for diabetic retinopathy: a survey of health authorities during a period of transition.

@article{Thompson1999ScreeningFD,
  title={Screening for diabetic retinopathy: a survey of health authorities during a period of transition.},
  author={Juliet R. Thompson and Gillian Grimshaw and Andrew D. Wilson and Richard Wood Baker},
  journal={Journal of evaluation in clinical practice},
  year={1999},
  volume={5 1},
  pages={81-5}
}