@article {9666,
	title = {Drug-induced alterations in the extracellular signal-regulated kinase (ERK) signalling pathway: Implications for reinforcement and reinstatement},
	journal = {Cellular and Molecular Neurobiology},
	year = {2008},
	pages = {157-172},
	doi = {10.1007/s10571-007-9240-3},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/18041576},
	author = {Haifeng Zhai and Yanqin Li and Xi Wang and Lin Lu}
}
