Refractive Error and Visual Impairment in School Children in Rural Southern China

Ophthalmology - Tập 114 - Trang 374-382.e1 - 2007
Mingguang He1,2, Wenyong Huang1, Yingfeng Zheng1, Li Huang2,3, Leon B. Ellwein4
1Key Laboratory of Ophthalmology and Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China.
2Helen Keller International, New York, New York
3Guangming Eye Hospital, Yangjiang, China.
4National Eye Institute, National Institutes of Health, Bethesda, Maryland

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