@article {9655,
	title = {Long-term methadone maintenance reduces protracted symptoms of heroin abstinence and cue-induced craving in Chinese heroin abusers},
	journal = {Pharmacology Biochemistry and Behavior},
	year = {2007},
	pages = {141-145},
	doi = {10.1016/j.pbb.2007.04.010},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/17532034},
	author = {Jie Shi and Li-Yan Zhao and David H. Epstein and Xiao-Li Zhang and Lin Lu}
}
