Abstract
韩向午.流行病学基本方法:Ⅱ.病例-对照研究方法[J].Chinese journal of Epidemiology,1989,10(2):113-118
流行病学基本方法:Ⅱ.病例-对照研究方法
  
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韩向午 华北煤炭医学院 
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