![Retention and HIV seroconversion among drug users on methadone maintenance treatment in Yunnan, China]()
Retention and HIV seroconversion among drug users on methadone maintenance treatment in Yunnan, ChinaChang, Y-P.; Duo, L.; Kumar, A. M. V.; Achanta, S.; Xue, H-M.; Satyanarayana, S.; Ananthakrishnan, R.; Srivastava, S.; Qi, W.; Hu, S-Y. · Public Health Action · 2014