title: Limitations of epidemiology in understanding pathogenesis of cataracts.
authors.affiliation: Institute of Ophthalmology, University College London, UK.
authors.forename: G J
authors.initials: GJ
authors.lastname: Johnson
mesh_terms: D016022:Case-Control Studies; D002386:Cataract / Q000453:epidemiology*; D015331:Cohort Studies; D003906:Developing Countries; D006801:Humans; D012307:Risk Factors