Cases were collected from epidemic reporting system, EHF case questionary and laboratory rate.

病例姿料来源于疫情报告系统、EHF个案和实验室结果。

Methods Survey 608 residents, who are above 35-year-old in Songbo town of Shen Nongjia area, with unific survey papers;and give them physical examination.

方法 采用统一神农架林区松柏镇 35 岁以上居民进行问卷及体检。

A survey on 155 opioid abusers and their polydrug abuse was carried out with a questionnaire designed by National Institute on Drug Dependence.

用北京医科大学中国药物依赖性研究所设计,155例阿片类滥用者及其多药滥用情况进行。