@article {9733,
	title = {Chronic unpredictable stress induces a reversible change of PER2 rhythm in the suprachiasmatic nucleus},
	journal = {Brain Research},
	year = {2011},
	pages = {25-32},
	doi = {10.1016/j.brainres.2011.05.001},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21621196},
	author = {Wen-Gao Jiang and Su-Xia Li and Shuang-Jiang Zhou and Yan Sun and Jie Shi and Lin Lu}
}
