对吸烟与肺癌相关性的临床和流行病学研究结果也直到1950年才首次公布于众。
The first clinical and epidemiological studies linking cigarette-smoking and lung cancer were published only in 1950.
目的研究道路交通伤的临床流行病学特点与机动车碰撞类型的关系。
Objective to study relationship between the feature of clinical epidemiology of the road traffic trauma and patterns of motor vehicle collision.
方法进行流行病学普查，采用问卷与临床诊断相结合对研究对象进行调查。
Methods The residents in community were surveyed by the method of epidemiology investigation and combining questionnaire with clinic diagnosis.
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