1·Epidemiological studies have found that children with PDD have no higher prevalence of gastrointestinal tract than normal children.
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。
2·There is no epidemiological evidence for higher risk of cardiac arythmia.
无流行病学证据表明心律失常的风险更高。
3·Epidemiological survey was performed on the natural environment and the infection of fasciolopsis buski in aquatic in Weishan county.
对微山县水产养殖的自然环境和布氏片虫病的感染情况进行了流行病学调查。
4·Epidemiological investigations and genotyping have confirmed transmission of measles virus among several countries in the Region and to the Americas.
流行病学调查和基因型分型均已确认在这一区域多个国家和美洲有麻疹病毒传播。
5·Interpretation of the significance of this finding for human health will depend on clinical and epidemiological data now being gathered in Turkey.
关于这一结果对人类健康重要意义的解释将取决于目前正在土耳其收集的临床和流行病学资料。