We analysed the case-control data of House Rats type of Epidemic Hemorrhagic Fever(EHF), which were 60 pairs from an urban area and 54 pairs from a rural area,with the single-factor- matched method and Logistic model.

 
  • 对城市60例和农村54例家鼠型出血热病例作1:1配对病例对照研究。
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