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[Several common biases and control measures during sampling survey of eye diseases in China]

Huai-jin Guan1

  • 1Department of Ophthalmology, Affiliated Hospital of Nantong University, Nantong 226001, China.

[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|November 28, 2008
PubMed

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