灾害流行病学研究中心的一项研究发现，在1980年至2007年间，近8400起自然灾害导致200多万人死亡。
A study by the Center for Research on the Epidemiology of Disasters finds that, between 1980 and 2007, nearly 8,400 natural disasters killed more than two million people.
灾害流行病学研究中心的一项研究发现，在1980年至2007年间，近8400起自然灾害导致200多万人死亡。
A study by the Centre for Research on the Epidemiology of Disasters finds that between 1980 and 2007, nearly 8,400 natural disasters killed more than two million people.
流行病学研究发现，广泛性发育障碍（Pervasive Developmental Disorder）孩子和正常孩子相比较并没有更高的胃肠道患病率。
Epidemiological studies have found that children with PDD have no higher prevalence of gastrointestinal tract than normal children.
人芽囊原虫是否具有致病性一直颇有争议，因为很多流行病学研究和实验动物研究得出了矛盾的结论。
The pathogenic potential of Blastocystis hominis is still controversial because many epidemiologic and experimental animal studies gave quite different conclusions.
除了流行病学研究，还有其他的吗？
根据流行病学研究，情况就是如此。
According to epidemiological studies, that appears to be the case.
方法采用现场实验之流行病学研究方法。
Methods Field epidemiological methods were used in the observation.
方法遗传流行病学研究。
研究设计：以人群为基础的流行病学研究。
为了使预防更有效，需要更多流行病学研究。
目的探讨反向配比设计在流行病学研究中的应用。
Objective To explore the application of counter-matching design in epidemiological research.
8亿美元用于流行病学研究、监管、机构和业务活动。
180 million for epidemiologic, regulatory, institutional and operational activities.
5篇关于随机人体实验室试验,12篇关于流行病学研究。
We included in the analysis 17 articles that met our basic quality criteria: 5 randomized human laboratory trials and 12 epidemiological studies.
目的对我国东北地区蜱传斑点热进行病原学和流行病学研究。
Objective To study the aetiology and epidemiology of tick borne spotted fever in northeastern area.
家庭是社会的基本组成单元，同时也是流行病学研究的最小人群单位之一。
The family is not only societys basic composition unit but also one of the smallest population in researches of epidemiology.
现场工作人员所做的流行病学研究表明，天花蔓延并没有如书本所述那样迅速。
Epidemiological studies by field staff demonstrated that smallpox did not spread so rapidly as textbooks suggested.
目的：流行病学研究发现血清胆固醇水平与一些癌症的发生和死亡率呈负相关。
Purpose: an inverse correlation between serum cholesterol levels and cancer incidence and mortality has been observed in several epidemiological studies.
流行病学研究表明，哮喘儿童发生支气管炎症状的增多与长期接触二氧化氮有关。
Epidemiological studies have shown that symptoms of bronchitis in asthmatic children increase in association with long-term exposure to NO2.
作者从1990年开始，对同安县肝癌高发现场的肝癌病因进行了流行病学研究。
A study on epidemiology and the cause of primary liver cancer (PLC) was undertaken in Tongan County since 1990.
但是，流行病学研究发现，pdd孩子和正常孩子相比较并没有更高的胃肠道患病率。
But epidemiological studies have found no higher prevalence of gi problems among children with PDD compared to normally developing children.
通过慎重计划和开展的流行病学研究，可获得关于癌症在人群中分布情况的科学依据。
Scientific evidence on the distribution of cancer in the population can be obtained through carefully planned and executed epidemiological studies.
目前还没有流行病学研究对这些说法进行认证，但是大量的报导加剧了人们对污染的恐惧。
There have been few epidemiological studies to validate such claims, but the scale of such reports highlights the growing fear of pollution.
非洲撒哈拉以南地区的临床和流行病学研究能力、管理经验以及制药能力大多集中在南非。
Much of sub-Saharan Africa’s clinical and epidemiological research capacity, regulatory expertise, and pharmaceutical production capacity is concentrated in South Africa.
关于接触射频的潜在长期风险的流行病学研究主要是要查明脑肿瘤与移动电话使用之间的相关性。
Epidemiological research examining potential long-term risks from radiofrequency exposure has mostly looked for an association between brain tumours and mobile phone use.
研究调查了参与芝加哥健康与老龄项目(CHAP)的居民。这是一个65岁及以上居民人群流行病学研究。
The study examined residents participating in the Chicago Healthy and Aging Project (CHAP), a population-based epidemiologic study of residents 65 years or older.
研究人员在《美国流行病学》杂志上发表了他们的研究结果。流行病学研究疾病如何传播及控制。
The researchers published their findings in the American Journal of Epidemiology. Epidemiology is the study of how diseases spread and how they can be controlled.
研究人员在《美国流行病学》杂志上发表了他们的研究结果。流行病学研究疾病如何传播及控制。
The researchers published their findings in the American Journal of Epidemiology. Epidemiology is the study of how diseases spread and how they can be controlled.
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