In this paper, a discrete stage-structured epidemical model is proposed and studied.

Flavonoids are plant pigments that have cancer protective effect which has been found in epidemiologic studies.

类黄酮是植物染料,在流行病学的研究中发现其有抗癌症的作用.

Methods: Through epidemiologic investigation, classified grains were collected according to different grain drying modes.

方法运用流行病学调查法分类采集大巴山区不同干燥方式下的粮食样品.

Objective To study the epidemiologic characteristics of primary liver cancer ( PLC ) .

目的研究原发性 肝癌 流行病学特征.

AIM In order to inquire into on epidemiologic factor and transmission mechanisms of Thlazia in China.

目的为探讨我国结膜吸吮线虫病流行因素和传播机制.

B. If clinical findings ( epidemiologic, symptomatic, and physical examination ) suggest PID empiric treatment should be initiated.

如果临床发现 ( 流行病学, 症状, 体格检查 ) 提示盆腔炎,应该开始经验性治疗.

ObjectiveTo build up systematic methods for the observation on epidemiologic problems about adult KBD.

目的为成人大骨节病病情动态研究,构建观察标志和方法.

Meanwhile, the epidemiological investigation continues in Guangdong province.

与此同时广东省的流行病学调查工作仍在继续.

Objective : To get the epidemiological characteristics of injuries, among students and provide informative for preventive intervention.

目的: 了解中小学生伤害发生的流行特点和规律,为制定伤害干预措施提供科学依据.

Objective To study the epidemiological characteristics of congenital hydrocephalus in Chinese perinatals.

目的探讨1996至2004年期间我国围产儿先天性脑积水的流行病学特征.

Methods Clinical analysis and epidemiological investigation.

方法临床病例分析和流行病学调查.

The epidemiological studies played a key role in these decisions.

流行病学研究在这些裁定中都起着重要作用.

Methods Epidemiological observation and X-ray photograph.

方法流行病学调查和 X 线拍片.

According to clinical manifestations, epidemiological investigation and laboratory test results, the experts identified as pneumonic plague.

根据患者临床表现 、 流行病学调查和实验室检测结果, 专家确认为肺鼠疫.

Objective To sum up the epidemiological characteristics of an outbreak of tuberculosis.

目的总结一起结核病暴发流行的特点.

Some data are now available from studies that have utilized an epidemiological approach.

利用流行病学方法的研究工作已经提供了一些资料.

These studies are often referred to as epidemiological or post-marketing surveillance studies.

这些研究通常涉及到流行病学研究或上市后监查研究.

To investigate and analyze the epidemiology material of pars plana vitrectomy.

目的调查玻璃体切割手术病人流行病学的状况.

Epidemiology, Injury Patterns, and Results of Operatie Treatment.

流行病学, 损伤模式, 和手术治疗结果.

However, many recent epidemiologic studies have indicated the reveres epidemiology of MA in patients with CRF.

然而新近许多流行病学的研究显示慢性肾衰竭患者MA的“逆流行病学”现象.

Beral is director of the cancer epidemiology unit of Oxford University.

蓓拉尔是牛津大学癌症流行病学小组的主任.