Refractive Error and Visual Impairment in Urban Children in Southern China

Investigative Ophthalmology and Visual Science - Tập 45 Số 3 - Trang 793 - 2004
Mingguang He1, Junwen Zeng1, Yizhi Liu1, Jingjing Xu1, Gopal P. Pokharel2, Leon B. Ellwein3
1From the Zhongshan Ophthalmic Center, Guangzhou, People’s Republic of China; the
2Prevention of Blindness and Deafness, World Health Organization, Geneva, Switzerland; the
3National Eye Institute, National Institutes of Health, Bethesda, Maryland

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