@article {9685,
	title = {Conditioned place preference induced by licit drugs: Establishment, extinction, and reinstatement},
	journal = {TheScientificWorldJournal},
	year = {2008},
	pages = {1228-1245},
	doi = {10.1100/tsw.2008.154},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/19082419},
	author = {Yu Liu and Bernard Le Foll and Yanli Liu and Xi Wang and Lin Lu}
}
