Erratum to: Evaluating the efficacy of a web-based self-help intervention with and without chat counseling in reducing the cocaine use of problematic cocaine users: the study protocol of a pragmatic three-arm randomized controlled trial
[摘要]
[发布日期] 2015-09-16 [发布机构]
[效力级别] [学科分类]
[关键词] [时效性]