@inbook{19643,
  author = {Dandona R. and Dandona L. and Kuper H. and Tasman W. and Jaeger E.},
  title = {Global patterns of blindness},
  year = {2008},
  journal = {Duane’s Clinical Ophthalmology},
  publisher = {Lippincott Williams & Wilkins},
  address = {Philadelphia},
  language = {eng},
}