A series of ecologic analyses of pertussis notifications during epidemic periods in relevant age cohorts were conducted.
文章对相关年龄组流行阶段的百日咳呈报案例进行了系列生态学分析。
A series of ecologic analyses of pertussis notifications during epidemic periods in relevant age cohorts were conducted.
文章对相关年龄组流行阶段的百日咳呈报案例进行了系列生态学分析。
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