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Zhang, Lei; Chow, Eric PF; Zhuang, Xun; Liang, Yanxian; Wang, Yafei; Tang, Caiyun; Ling, Li; Tucker, Joseph D; Wilson, David P; (2013) Methadone maintenance treatment participant retention and behavioural effectiveness in China: a systematic review and meta-analysis. PloS one, 8 (7). e68906-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0068906
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