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

病例姿料来源于疫报告系统、EHF个表和实验室结果。

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 采统一表对神农架林区松柏镇 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.

北京医科大学中国药物依赖性研究所设计的表,对155例阿片类滥者及其多药滥进行。