We suggest that the survey of epidemiology should be made in natural population.
强调流行病学调查应在自然人群中进行。
Objective To survey and analyse the characteristics and some trends of clinical epidemiology in all the patients with knee meniscus injury by using arthroscopic surgery recently.
目的调查分析近期关节镜下手术治疗膝半月板损伤病例的临床流行病学特点及其变化趋势。
Methods the method of descriptive epidemiology was used to statistically analyze the data from surveillance and cases survey of the special report system for AFP from 1991 to 2004 in Shaoxing city.
方法用描述流行病学方法，对绍兴市1991 ~ 2004年afp专报系统的监测资料和个案调查材料进行统计分析。
Methods Survey with the methods of epidemiology, etiology and molecular biology.
方法运用流行病学、病原学、血清学方法，对钩体病进行监测。
Methods The methods of epidemiology, etiology and biology were used in the survey.
方法通过现场流行病学、血清学和病原学方法进行调查分析。
Conclusion: in the recent 11 years, the survey result on the medical records of in-patient suffered from liver cirrhosis is similar to the current survey results of epidemiology of liver cirrhosis.
结论近十一年新疆医科大学第一附属医院消化科肝硬化住院病历调查结果示：肝硬化发病情况与目前肝硬化流行病学调查结果相似。
A survey on the epidemiology of Leucocytozoonosis in chicken was carried out during1985-1988 in Fujian Province.
本文报告福建省鸡住白虫病的流行病学调查结果。
A survey on the epidemiology of Leucocytozoonosis in chicken was carried out during1985-1988 in Fujian Province.
本文报告福建省鸡住白虫病的流行病学调查结果。
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