Methods A questionnaire was administrated among 22 drug users in the community and 118 patients in the compulsive detoxification center in Gejiu.

• 方法采用自行设计的“美沙酮维持治疗项目海洛因成瘾者基线调查问卷”,对正在个旧市强制戒毒所的118名戒毒人员和社区内22名(前)海洛因成瘾者进行调查。