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流行病学是一门重要的预防医学。近20年来,国外流行病学研究进展迅速,不但改变了许多传统的流行病学概念,而且广泛应用于许多疾病的研究,出现了肿瘤流行病学、描述流行病学、分析流行病学、实验流行病学及血清流行病学等专著;尤其通过对病因不明疾病的研究,进一步充实了流行病学的理论和方法,使流行病学进入了一个新的阶段。现将有关的一些方面简介如下。
Epidemiology is an important preventive medicine. In recent 20 years, the rapid progress of epidemiological studies abroad has not only changed many traditional concepts of epidemiology, but also widely applied in many diseases, such as epidemiology of epidemiology, epidemiology of epidemiology, analysis of epidemiology, experiment Epidemiology and Serology Epidemiology; especially through the study of diseases with unknown etiology, further enriched the theory and method of epidemiology, so that the epidemiology has entered a new stage. Here are some aspects of the brief below.