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双语例句
1
Methods a case control study with 100 cases of CHD and 100 pairmatched controls was conducted with occupational stress factor scales and multivariate analysis.
方法应用职业紧张因素测试表，对100例冠心病患者1∶1配对病例对照进行多因素分析。
2
Methods: A pair-matched case-control study was conducted with data on the sampling survey of HBP in Binjiang Hospitol from 1994 to 1996.