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Journal
Ophthalmic Epidemiol
Volume
15
Issue
5
Pages
334-8
Publication year
2008
Suggested citation
Li Z, Cui H, Liu P, Zhang L, Yang H, Zhang L. Prevalence and causes of blindness and visual impairment among the elderly in rural southern Harbin, China. Ophthalmic Epidemiol. 2008; 15(5): 334-8.