matched case-control study 病例对照研究 ; 配比病例对照研究 ; 照研究
a matched case-control study 病例对照研究
matched case control 配比病例对照
a matched case-control 配对病例对照
a matched case control 配对病例对照
matched case-control studying 配比的病例对照研究
matched case-control paired study 病例对照配对研究
frequency matched case control study 频数配比病例对照研究
Methods 1: m matched case-control study was conducted.
方法采取1：M匹配的病例对照研究。
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。
Methods a 1:1 matched case-control study was conducted 175 patients with gastric cancer and 175 controls were surveyed by questionnaire.
方法采用1：1配对的病例对照研究，对175对病例及对照进行饮食及生活行为问卷调查。
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