A large genetic study of age-related macular degeneration (AMD) has identified three new genes associated with this blinding eye disease - two involved in the cholesterol pathway. Results of this large-scale collaborative study, supported by the National Eye Institute (NEI), part of the National Institutes of Health, were published online April 12 in the Proceedings of the National Academy of Sciences. "Genome-wide association studies require large numbers of patients to discover significant genetic associations... 
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