The postcode of Dingyuan County, Chuzhou City, Anhui Province, China is 233200.

中国大陆安徽省滁州市定远县的邮政编码是233200。

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Methods a 1:1 matched case-control study with 50 pairs on risk factors of cataract was carried out in Hefei city and Dingyuan county.

方法采用1：1病例对照研究方法对合肥市及定远县50对老年性白内障及对照进行问卷调查。

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Objective to analyze knowledge level on tuberculosis control and prevention in Dingyuan county so as to provide basis for making health promotion plan on tuberculosis control and prevention.

目的分析定远县居民结核病防治知识知晓水平，为制定结核病健康促进计划提供依据。

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