An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Zhang X, Ma L, Li S, Wang Y, Wang L.Zhang X, et al. Among authors: li s.Sleep Med. 2011 Apr;12(4):335-40. doi: 10.1016/j.sleep.2010.08.015.Sleep Med. 2011.PMID: 21398177
Zhang X, Wang Y, Li S, Huang X, Cui L.Zhang X, et al. Among authors: li s.Neurosci Lett. 2002 Jun 7;325(2):99-102. doi: 10.1016/s0304-3940(02)00249-5.Neurosci Lett. 2002.PMID: 12044631
Zhang X, Ma L, Li S, Wang Y, Weng X, Wang L.Zhang X, et al. Among authors: li s.Exp Brain Res. 2008 Mar;186(2):335-41. doi: 10.1007/s00221-008-1285-0. Epub 2008 Mar 4.Exp Brain Res. 2008.PMID: 18317744
Zhang X, Wang Y, Li S, Wang L.Zhang X, et al. Among authors: li s.Clin Neurophysiol. 2003 Dec;114(12):2461-8. doi: 10.1016/s1388-2457(03)00251-7.Clin Neurophysiol. 2003.PMID: 14652106
Zhang X, Wang Y, Li S, Wang L, Tian S.Zhang X, et al. Among authors: li s.Exp Brain Res. 2005 May;162(4):503-8. doi: 10.1007/s00221-004-2210-9. Epub 2005 Mar 18.Exp Brain Res. 2005.PMID: 15776223
Xu Y, Li S, Huang X, Cong B.Xu Y, et al. Among authors: li s.Zhonghua Yi Xue Za Zhi. 2002 Oct 25;82(20):1388-90.Zhonghua Yi Xue Za Zhi. 2002.PMID: 12509920Chinese.
Xu Y, Li SW, Huang XZ, Cong B.Xu Y, et al.Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2002 Dec;24(6):632-4.Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2002.PMID: 12905694Chinese.