(Q35593694)
Statements
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Visual acuity in northern China in an urban and rural population: the Beijing Eye Study (English)
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Xu L
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Li J
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Cui T
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Hu A
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Zheng Y
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Li Y
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Sun B
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Ma B
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Jonas JB
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1 September 2005
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89
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9
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1089-1093
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Identifiers
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