What is the global burden of visual impairment?
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* Corresponding author: Lalit Dandona dandona@asci.org.in
BMC Medicine 2006, 4:6 doi:10.1186/1741-7015-4-6
* Corresponding author: Lalit Dandona dandona@asci.org.in
BMC Medicine 2006, 4:6 doi:10.1186/1741-7015-4-6