Epidemical characteristics of dental caries 第三节 ; 龋病的流行特点 ; 龋病的盛行特性
Epidemical characteristic 流行特征
Epidemical Intelligence Service 流行病学情报服务
epidemical rate 流行速率
epidemical status 流行现状
epidemical situation 流行态势
epidemical factors 流行因素
Methods:We adopted Epidemical Field Investigation method to study it.
方法：采用流行病学现场调查方法。
In this paper, a discrete stage-structured epidemical model is proposed and studied.
本文主要讨论了离散的阶段结构传染病模型。
Objective To understand epidemical situation of Gnathostoma spinigerum in Wuhua county of Guangdong province.
目的了解广东省五华县棘颚口线虫的流行情况。
应用推荐